Take command of HEROCORP™ and launch a Preemptive Defence Campaign™ against parallel dimensions in OTTTD, the most outrageous Tower Defence title around.
User reviews: Very Positive (66 reviews)
Release Date: Aug 6, 2014
Popular user-defined tags for this product:

Sign in to add this game to your wishlist or mark as not interested


HOLIDAY SALE! Offer ends January 2


Buy OTTTD - Deluxe Edition

Includes OTTTD + 1 Dexluso Armour type, 1 Dexluso Gun and a Deluxe Wallet - 69,000 starter coins and 11 medals.

HOLIDAY SALE! Offer ends January 2


Buy OTTTD - OTT Edition

Includes Deluxe edition + Art Book PDF, OTTTD poster artwork, 3D Printer files for the HEROCORP soldiers, Your name in the credits as an OTT supporter and a OTT Wallet stuffed with 101,010 coins and 42 medals.

HOLIDAY SALE! Offer ends January 2


Recent updates View all (5)

August 26

We'll be at PAX PRIME in Seattle

Good news: We won best "OTHER"* game in the Intel Level Up contest which means we'll be at PAX Prime showing off the game!

Details on the other winners here. Go Aussies!

So if you're heading to PAX PRIME come say hi (or Gday if you speak Australian) as we'll be on the Intel stand each day and then... not sure... Maybe just talk about games? or crazy Australian slang or if you're local help us find a good burger joint?

*And we all know that "OTHER" is like the best category ever right! :)

1 comments Read more

August 24

v1.27 Hotfix

- some users were experiencing blank (non loaded) levels since 1.26, which this should address. Sorry for the inconvenience, we hope it'll be running smoothly now.

0 comments Read more

About This Game

Lock, load and let the gibs fly in OTTTD, a Tower Defence/RTS game with RPG elements that pits you against some of the weirdest creatures in the multiverse.

OTTTD stands for Over The Top Tower Defence, and you'll see why when you're blasting 9 kinds of hell out of a Cactus Ghost that's making a beeline for your battlefield HQ. You play as a commander for HEROCORP™, the 4th largest private military organization in the galaxy. A long period of peace has left the company coffers a little bare so the science division developed Trans-Dimensional Rifts, opening up lucrative opportunities for war in other universes. It's like Starship Troopers meets Stargate meets Spaceballs, with way more explosions!


Ridiculously definitive edition
Prepare your eyes and ears for incredible deluxe-ness! Featuring crisper sound and high resolution graphics, the PC release of OTTTD will leave you feeling like you've actually stepped into an alternate universe and started blasting everything to smithereens.

Deep RPG Mechanics
OTTTD lets you choose from 7 hero classes to make up your squad of 3 battlefield employees. The more action they see the more XP they earn, giving you the chance to level them up through custom skill trees, including powerful combat abilities to unleash during the fight.
• 30+ active abilities
• 40+ passive skills
• 30+ equippable weapons
• multiple armor options with stats to suit your play-style

Weapons! Weapons! WEAPONS!
With 12 tower types to build and 6 different firearm classes, HEROCORP™ has got the hardware to ensure you can wreak havoc in your own personal style.

Disgustingly varied foes
The range of enemies in OTTTD is wide enough to soothe even the itchiest trigger finger. Floating eyeballs? Check. Gunclams? You know it. Giant armored Wartoises? Of course. You'll even go toe to fin with a giant flying shark, and show the mythological Kraken who's boss!

The Story
The year is 2136. You work for HEROCORP™, the universe’s 4th largest private military force. Your job is to “preemptively defend” the Earth against alien dimensions. As long as you complete the missions under budget and fill out the TPS reports in triplicate, everything goes smoothly.

Is pre-emptively defending Earth ethical? Who cares when the money’s good!

Deluxe Edition

HEROCORP understands the needs of the more discerning battle commander, hence the Deluxe Edition of OTTTD. In addition to everything in the pre-order, you'll get the Deluxo weapon and armor sets. Recently developed by our Lab Division, the Deluxo Range gets more powerful each time your soldier levels up, making it worth its weight in requisition forms. We'll also throw in a Deluxe Wallet, with 69,000 coins and 11 medals to buy yourself something nice.

• Dexluso Armour - Armour that gets stronger as you get stronger
• Dexluso Gun - Gun that gets stronger as you get stronger
• Deluxe Wallet - 69,000 starter coins and 11 starter medals

OTT Edition

In addition to everything in the Deluxe Edition, the OTT edition comes with rare Cheese Armor set forged by our Dairy Division, which helps your soldiers get more XP and coins on the battlefield.

You will also receive these bad boys:
• An Art Book PDF, full of concept sketches plus more visual treats.
• OTTTD poster artwork. Looks amazing on 100% of walls.
• 3D Printer files for the HEROCORP soldiers, so you can battle command IRL.
• Your name in the credits as an OTT supporter. Welcome to history, baby.
• An OTT Wallet stuffed with 101,010 coins and 42 medals, to give you the financial edge on your enemies."
• Bonus Armour - “Vintage Combat Cheddar” - 20% XP bonus and 5% coin bonus

System Requirements

Mac OS X
SteamOS + Linux
    • OS: Microsoft® Windows® XP/Vista or later
    • Processor: 1.4GHz or faster
    • Memory: 1 GB RAM
    • Graphics: Any from the last 4 years
    • DirectX: Version 9.0
    • Hard Drive: 300 MB available space
    • Sound Card: All soundcards would work
    • OS: 10.7+
    • Processor: 1.4GHz or faster
    • Memory: 1 GB RAM
    • Graphics: Any from the last 4 years
    • Hard Drive: 300 MB available space
    • Sound Card: All soundcards would work
    • Processor: 1.4GHz or faster
    • Memory: 1 GB RAM
    • Graphics: Any from the last 4 years
    • Hard Drive: 300 MB available space
    • Sound Card: All soundcards would work
Helpful customer reviews
59 of 69 people (86%) found this review helpful
3.7 hrs on record
Posted: August 6
I've played for 2 hours and made it to mission 11 of 20. I didn't realize it was a PC port of an android title until after I started playing, so at first I wasn't sure that it was a good choice. It turns out however that;
- It's pretty fun and has some cool and sometimes pretty amusing features
- After playing the standard edition, deluxe and OTT versions don't sound worth it at all

At first maps looked like they were way too small and felt cramped. Tower placement is restricted to spots around the map marked with an X. Also you can't increase the speed of the game. None of these were really an issue in the end later maps were big enough and you just need to make sure you have a good combination of different types of towers in limited locations where you are able to place them. You also have a pool of up to seven heroes, three of which you can take onto the battlefield each stage. I unlocked five of them by stage ten. They can be ordered around the map to attack enemies and also have special abilities which can be upgraded as your heroes level up after completing stages. My favorite heroes were the recon and rocketeer. The rocketeer can periodically call in a powerful cruise missile strike anywhere on the map. The recon was able to mark targets so that the rocketeer and any missile turrets could fire missiles at them even if they were out of range. That was my favorite thing about this game. Not every tower defense game has stuff like that. Also you can buy weapon and armor upgrades for your heroes. This is how you spend your coins and medals. I just bought the standard version of this game so I earned all my currency just by completing stages. Some of the stuff is pretty expensive especially the armor, so I could only afford basic weapon upgrades. This didn't really seem to matter, I still kicked ♥♥♥ without better gear. I don't see why you would want to get the deluxe or OTT editions of this game just for extra coins and medals. 100,000 coins will only get you two sets of basic armor... You also use medals to resurrect fallen heroes between stages, but so far my guys hardly ever died. I don't seem have a shortage of medals. Again another reason why I don't see the point in paying more real money for coins and medals. Why would you pay for extra currency in a non free to play single player game?

Some of the enemy models were really amusing. There are giant disfigured teddy bears that shoot laser beams out there eyes and obese green skinned cleaver wielding zombies that ride mobility scooters lol amd puke gibs all over your turrets and heroes. Also I really liked some of the dialogue, one the heroes sends up Batman 'my throat hurts... do you have a throat lozenge?' lol

Maybe there are actually people out there who want the extra art and stuff. But the Deluxe and OTT editions are over double and triple the price respectively of the standard edition. This problem is easily solved by just getting the standard edition lol, which I recommend trying.
Was this review helpful? Yes No
30 of 33 people (91%) found this review helpful
34.5 hrs on record
Posted: August 8
My original review was fairly critical of this game due to the controls. Within a short period of me posting my review the developer personally responded to my criticism, thanked me, and then a week later released a patch that addressed the vast majority of my complaints.

Seriously, at this point I'm incredibly impressed. The game is quite fun and the developer clearly cares about their product.


This game is pretty solid, even with the little bit that I have played. At this point I am really wishing I would have bought this on iOS or Android though because the PC ports has some issues with the controls that leave me feeling frustrated because I feel like I am playing on a touch screen but I am forced to use a mouse as an intermediary. So much standard PC game design convention is thrown out the window just to make this a fast port.

1) Everything is accomplished via left-click, including moving your hero. Let's face it, the standard PC control for moving your hero from point A to point B is to right click.
2) The battlefield camera is incredibly myopic and should be able to zoom out a bit farther on larger screens.
3) The battlefield camera doesn't auto detect your mouse position and start scrolling the screen over when you mouse gets to the edge of the screen. Instead you must left-click on an empty area of the map and then drag the screen over as if you were using a touch screen tablet.
4) The scroll wheel does nothing useful. If it isn't going to zoom in and out very much, It should probably be set up to scroll through your heros in the same way as the tab key does instead.
5) When you have a special ability queued up your cursor doesn't give any indication that you are in that context. If you're activating a special ability and are moving the mouse we tend to expect our cursors to reflect what is about to happen when we click.

As I said before, I really like this game. On mobile I would really, really enjoy it. Unfortunately the PC controls are just nothing more than a sloppy port from a mobile game. I'll tolerate the annoying PC controls because I'm enjoying it regardless
Was this review helpful? Yes No
17 of 22 people (77%) found this review helpful
13.4 hrs on record
Posted: August 8
Fun, thoroughly enjoyable game, but doesn't feel quite right on PC.

OTTTD is mainly a tower defence/rts/rpg hybrid. You build your towers in fixed spots, level up and unlock abilities for your characters, then mess up a bunch of enemies.

First the positive. It is a very quirky, characterful game. I've smirked on a number of occasions when the next bad guy starts walking down the paths. If undead teddy bears, giant flying shark fortresses, and 'shanktopuses' are your thing, then get this game!
Music and sound effects are good, as is the voice acting. Didn't turn me off or make me cringe, which as a sound designer myself, is a really good thing.
The whole atmosphere is great, and whoever wrote all the little jokes on the items/upgrades/achievements needs a pat on the back.
And of course, gameplay is smooth, easy to get the hang of, and quite intense in the later stages.

So, it all sounds really good, right? Well it's important to know that this is technically a port of a mobile game. I was aware when I bought this, and it certainly shows, but it's not necessarily a bad thing...in places.
For example, it is easy enough to get coins and medals (the respective currencies) in game, and the option for microtransactions is absent (or at least, I couldn't see it). This is obviously a big thumbs up, although it makes the fancypants versions for sale kind of obsolete unless you're into the extras.
However, when a character dies, you have a time limit before you can use them again. You can speed this up at the cost of a medal. To be honest, I wasn't that bothered by it initially, as earning medals is easy, but that changed once I unlocked the first endless level. If your characters die, they gain 0 experience AND you have to wait for them to revive. Getting no exp from a 15+ wave run is one thing, but then having to wait 45 minutes (without using a medal) to revive is another. Not cool.
NOTE: After playing it a little longer, this no longer becomes an issue, as you'll have a huge surplus of medals.

Another example would be that, in order to pan across the stage, you actually have to click and drag, like using your finger on a tablet. Not a bad thing, but I'm more used to the rts-esque camera-follows-the-mouse deal.
There's also little in the way of settings customisation, although if you bought this game with that in mind, then I don't know what you expected.
A lot of these small things constantly remind me that it's a mobile port. Too many control/mechanic decisions feel a little foreign to the keyboard and mouse. It's unfortunate that these small issues glares over an otherwise fantastic game, because I've thoroughly enjoyed every moment of the actual gameplay.

If you can accept that, then you should definitely check this out. Definitely worth the current price (the standard edition anyway).
Was this review helpful? Yes No
11 of 13 people (85%) found this review helpful
10.9 hrs on record
Posted: August 9
I was a bit skeptical of this game given its mobile origins, but I am happy to report that my fears were unfounded.

OTTTD is incredibly awesome! The plot basically boils down to soldiers being out of work in a utopian society, so a company hires those soldiers to fight wars in other dimensions before the wars even happen. This means that the bulk of the game's plot sees you traveling to foreign planets and killing anything that moves.

As is somewhat typical with modern tower defense games, you unlock more towers and more tower upgrades as you progress. This ranges from the typical machine gun tower, missile tower, etc to eventually things more exotic things like death rays.

There's a sort of rock paper scissors aspect that starts to take shape in-game as some enemies are vulnerable only to specific attack, as well as introducing flying enemies etc. This means that you can't simply choose one type of tower and max it out to steamroll each level.

What makes OTTTD different than a lot of other tower defense games is its sense of humor and the soldiers which I previously mentioned as part of the plot. For each mission, you can bring along three soldiers. They function and unlock similarly to the towers except that they can walk around the map. Additionally, each soldier has their own set of skills, with skill trees that can be filled out as they level up. It's honestly difficult to decide if you're going to take a soldier into battle with strong offense or take a weaker character who can boost tower abilities. It's extremely well balanced and each soldier feels different. You can also buy different equipment for each soldier that will change their stats and appearance.

What really helps everything in the game feel different is its sense of humor. Each character has their own personality and set of dialogue that they will say as battles go on (though it will repeat somewhat frequently) with some characters talking about how the battle is boring them, how violence is bad, etc. It helps the characters feel a little more important than just walking towers. There are several planets to wage war on with a variety of strange enemies and unique environments. It kind of feels like if Starship Troopers was made into a 1980's cartoon in a lot of ways.

There are over 20 main missions in the campaign, with several boss battles scattered throughout. As you progress, you unlock stars which can be used to unlock levels in the "endless" mode.

Overall I feel like the game is worth the money and doesn't suffer any major drawbacks from its mobile origins.

10/10 Would invade alternate dimensions to create a war economy again.
Was this review helpful? Yes No
9 of 11 people (82%) found this review helpful
42.0 hrs on record
Posted: October 20
I'm having about 4 to 5x more fun with this tower defense game than I did with Defense Grid 2. So there it is.
Was this review helpful? Yes No
7 of 8 people (88%) found this review helpful
41.7 hrs on record
Posted: August 9
It's fun, map starts off really really small, after a while it get bigger, but does it relieve the hunger for tower defense games? yes, a bit grindy at first but still manages to be fun then without being too difficult or too easy. You can feel that it is a port from a mobile games; but the art, the gameplay, the rpg element could hook you for a while. If there's a complain, sometimes the choice of tower and heroes could be a bit confusing, luckily there's an encyclopedia in it.
Was this review helpful? Yes No
5 of 5 people (100%) found this review helpful
10.2 hrs on record
Posted: October 23
I picked this game up on sale for $6.60 but would happily pay full price for it now I have played it.
The current build of the game plays well(23/10/14), is a lot of fun and even humorous.
Good selection of unlockable characters and towers as you progress through the game. Weapons/armour can be purchased with ingame currency and the characters have a very nice leveling system.

Recommend this to all TD fans, this is a good one.
Personally I purchased just the 'entry level' edition. Coins and medals can be earned in game easy enough and I'm not struggling without getting the bonus packs.
Was this review helpful? Yes No
3 of 3 people (100%) found this review helpful
42.7 hrs on record
Posted: December 15
10/10. This is tower defense done right. I have nearly every tower defense game on steam. It's my favorite game genre. I just played through the whole campaign of OTTTD, and it was the most fun I've had playing tower defense in a long time! I've already started replaying maps just for the fun of it. There's also Endless mode.

OTTTD is an excellent mix of TD, RTS group tactical play, with the leveling elements of RPG. You have all of the classic tower types, plus you have several characters, and you can bring three of them onto the battlefield and control their movements and their special attacks. Each character is unique. The whole game is unique, with a style all its own, while still feeling like a classic tower defense game with lots of extras.

Everything is extremely well-balanced. The maps are challenging, yet certainly doable if you make wise choices with your characters and towers. Each character brings something different, and some of their abilities play off of each other and the towers. There is a lot of variety in the maps. Some characters are more useful on some maps than others, and some work better in certain group combinations than others.

There's a lot of high quality game here for the money, especially with Endless mode.
Was this review helpful? Yes No
2 of 2 people (100%) found this review helpful
0.5 hrs on record
Posted: December 9
Fun, replayable, and value for money. Nothing else to say.
Was this review helpful? Yes No
2 of 2 people (100%) found this review helpful
24.7 hrs on record
Posted: September 24
I've played almost every Tower Defense game and this one is a lot of fun and worth the money.
Was this review helpful? Yes No
2 of 2 people (100%) found this review helpful
149.8 hrs on record
Posted: December 16
This is a phenomenol tower defense game. The music, the gore, everything is just as it should be. Where else are you gonna fight a knife wielding octopus on a Harley? It's super tough, and at first I was getting stomped. Best bring your A game with this one....
Was this review helpful? Yes No
28 of 53 people (53%) found this review helpful
1.3 hrs on record
Posted: August 9
Over the top tower defense, or OTTTD, first released on mobile and now an Steam has loads of issues. More info either in the following video or below that in written format. Choose whatever fits best for you.
Graphics: OTTTD uses a comic artstyle with plain colours. Considering the low polygon count and the simple texturing, OTTTD still manages to look passable. The special effects and the lighting overall is visually outdated though.

Sound: The music is repetitive, the sound effects are flat and boring, and especially the commentary of the soldiers is very cringeworthy. The game tries really hard to be funny, but falls short and never came close to tickling my funny bone.

Gameplay: The gameplay shows the mobile roots of OTTTD clearly. It's overly simplistic with it's fixed positions for towers. In general there is barely any strategy to OTTTD except mixing towers due to the three different damage types (impact, electricity and flame). There is no timing involved when to upgrade and no incentive to hold back money if it is not needed.
The heroes in OTTTD gain experience and thus can upgrade their skills, which are sadly mostly boring stat upgrades and seldomly add any interesting ideas. With the earned gold from missions, you can also buy new weapons, which are heavily overpriced. This again comes from the roots of being a mobile game. In-app purchases and expensive items to push players to paying even more money than "only" paying for the game. This continues with timers on dead heroes, which can be skipped with the special medal currency and does not stop in the actual handling of the game, as everything, yes, EVERYTHING is just controlled by the mouse and the left button. No right button, nothing else. You can clearly imagine that clicking something else instead of doing what you wanted to do happens all the time.

It seems to me that the developer took the original mobile game, created a quick port (which runs like ♥♥♥♥, as the game drops below 15 fps sometimes on my machine that can run Skyrim at Ultra with 60...), even had the audacity of more than doubling the price compared to mobile without even adjusting the balance.

Do not buy this game, save your money and instead play some of the great free Tower Defense games available (GemCraft for example). Thanks for reading!
Was this review helpful? Yes No
3 of 4 people (75%) found this review helpful
37.0 hrs on record
Posted: August 8
Good design with fun graphics. Quick intuitive control of the battlefield. A fun tower defense game that doesn't take itself too seriously and has some new elements to set it apart from the rest.
Was this review helpful? Yes No
1 of 1 people (100%) found this review helpful
8.6 hrs on record
Posted: October 13
Classy. Seriously addictive and fun game. Cover the ground with corpses of enemies, kick аss and chew bubblegum, PAINT YOUR FACE WITH THE BLOOD OF THE WEAK, that sort of thing.

125% recommended for anyone who likes tower defense games and/or Duke Nukem.
Was this review helpful? Yes No
1 of 1 people (100%) found this review helpful
55.4 hrs on record
Posted: September 15
This game is pretty fun and I find it to be a nice alternative when you need to take a break from those more "serious" games.

To the creators:
I have a few tips/ideas you may want to consider adding to the game
1: being able to scroll normally with the mouse instead of having to click + drag
2: a DLC option for the Deluxe/OTT editions for those that already own the vanilla. Also, coins and medals are abundant in this game, so if those could be excluded for a cheaper price, that'd be great (and it may bring in more sales)
3: More information given in encyclopedia and gun/armour stats. An example would be damage listings seem to be dps based and not damage per shot, but if actual damage and fire rate could be included, that'd be great.
and the big one...
4: multiplayer. Having multiplayer maps would surely increase this games popularity. I propose the traditional TD type game where teams have to function together to defend their base, and have an option to "send" certain creatures in addition to the normal wave to the enemies base, at a cost yet giving an increased income per round. This would then have to be implemented with a easy way to play with/against friends, and/or play with friends against others searching for a game.

Thanks for reading!
Was this review helpful? Yes No
1 of 1 people (100%) found this review helpful
0.3 hrs on record
Posted: August 11
A great take on tower defense! Only played the first few missions of the campaign, but it's definitely worth playing through the rest.
I love the limited towers mechanic, makes you think which towers will be more effective throoughout the course of the level. I look forward to experiencing the later stages of the campaign.
Was this review helpful? Yes No
1 of 1 people (100%) found this review helpful
47.1 hrs on record
Posted: August 13
So before i get into the review - everyone is talking about the control schema being a bit weird. Seriously just use WASD....if fact compared to other PC based Tower Defence (OT) using WASD makes it far quicker and easier, invisible after a few rounds.

I really like (TD games, especially the very awesome Geodefence series on IOS. Since then I've really struggled to find a TD that isn't insanely repetitious, and easily beaten. Most TD's have a pretty basic formula, simple upgrade paths and they're not very complex. Find a solution and it basically works the whole way through the game.

OTTTD is fricken awesome. I've played 14 hours and the best thing is the diverse, dense and complex heros and towers available. Some levels you just need to stretch out and try combos of hero's and special's with certain towers at certain locations. Some levels the solution is right in front of our face and yet may take you an hour or two to work it out. The levels are filled with huge amount of detail and the waves are completely full on. This game is really challenging. Its not a walk in the park like Planets vs Zombies. This will actually get your heart beating when you've got 10 giant skulls pouring down a path and you've run out of area affect specials.

Some of the other reviews are a bit meh and I don't get them. Levels 12-16 are utterly awesome and I'm really enjoying the ability to replay other levels to continue building up. Allot of replayablity, especially with the endless levels. I have perverse desire in destroy Tower Defence games, combing up with combos that utterly waste the waves before they leave the level.

Sure the first couple of levels were a bit too easy. But the game really gets going and I’m really surprised at how much I’m getting into it. I hope the devs keep addings bits and pieces if they're able to return to it some day.
Was this review helpful? Yes No
1 of 1 people (100%) found this review helpful
1.2 hrs on record
Posted: October 24
A solid last hurrah for government backed local video game development. These guys are worth supporting, even though at times this game feels a bit 'freemium' for a purchased product.
Charms regardless.
Was this review helpful? Yes No
1 of 1 people (100%) found this review helpful
51.5 hrs on record
Posted: August 30
i don't even know where to start! this game is an awesome tower defense game (probably the best one i played yet)
1) very balanced, if you can't beat a level 3 stars you can return to that level later on whit more powerfull skills, weapons and charcters
2) diffrend attack types / enemy resistances, this makes so the player can't spam only 1 tower type, instead you need to spread other type of towers, (this is not something you see in most tower defense games)
3) challenging survival levels, most tower defense games have survival levels that start easy and then they get a little harder, in this game all the survival levels start very hard and become almost impossible!

some levels are kinda frustrating and some special abilitys take way too long to recharge (like bad potion, it took 4 waves before it recharged again whit 20% skill reload) other than that it's a masterpiece and i really recomend buying it :3
Was this review helpful? Yes No
1 of 1 people (100%) found this review helpful
14.8 hrs on record
Posted: December 22
I played the demo before and well I already was sold when i played the demo.

This game is pure fun and enjoyable. Even if you just only watch the details like when you kill something - yeah, it gets ripped appart and the (body)parts are flying around on the map. And next to this you have amazing towers that you can upgrade, Hero's (characters with great weapons and special abillities), and neat maps. This game is surely worth to call a Tower Defense, the gametitle fits perfectly too.

Worth your money, even if you pay full price.
Was this review helpful? Yes No