Pile on the firepower with the revolutionary Gunstacker and fire all your weapons at once in a symphony of destruction!
User reviews:
Very Positive (473 reviews) - 87% of the 473 user reviews for this game are positive.
Release Date: Aug 30, 2011

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Packages that include this game

Buy Serious Sam Complete Pack

Includes 11 items: Serious Sam 2, Serious Sam 3: BFE, Serious Sam 3: BFE Bonus Pack, Serious Sam 3: Jewel of the Nile, Serious Sam Classic: The First Encounter, Serious Sam Classic: The Second Encounter, Serious Sam Double D XXL, Serious Sam HD: The First Encounter, Serious Sam HD: The Second Encounter, Serious Sam HD: The Second Encounter - Legend of the Beast DLC, Serious Sam: The Random Encounter



“Mommy's Best Games' 2D shooter is fun the whole way through.”
7/10 – IGN
“Easily the most insane and downright fun 2D shooter I've played all year, if not ever.”
85/100 – Strategy Informer
“There's quite a lot of cathartic fun to be had with such a reckless onslaught of bullet-flavored justice”
7/10 – Destructoid
“Check your brain at the door, kick back, relax and enjoy a little carnage. It's worth it. Seriously.”
8/10 – Worth Playing

Just Updated

Two-Player Local Cooperative Play - Serious Sam can pair up with his new buddy Huff to slaughter Mental’s horde together in an orgy of violence and destruction!

Gunstacker Upgrades – Over 30 new guns to mix and match in towering stacks of awesome! Shotguns that fire a horde of bees, prism lasers, the return of Serious Sam’s trademark cannon and more! Exclamation point!

New Campaign and Challenge Missions – Tackle new missions and take to the air in your very own missile-loaded Pterosaur or roll through your foes on a dynamite-powered unicycle!

New and Upgraded Enemy Classes - The new Torcher Kitty, Explosion Eater and the Armored Gnaar are all stepping into the arena to wreck havoc the heroic Serious Sam!

About This Game

Serious Sam explodes into the second dimension using everything in his arsenal to battle the abominable legions of Mental’s horde. Pull the trigger to let the heavy ordinance fly in Serious Sam Double D XXL, a completely reloaded version of the indie sensation Serious Sam Double D with all-new missions, weapons, enemies, and challenges. Pile on the firepower with the revolutionary Gunstacker and fire all your weapons at once in a symphony of destruction! All that stands between victory and annihilation is a man in a T-shirt and jeans wielding a great big pile of guns.

Key Features

  • Serious Action: Unleash a storm of bullets and flame against an unrelenting horde of bizarre and ferocious creatures hell bent on bringing down the heroic Serious Sam. Clash against Mental’s army across 18 levels in three sensational worlds from the pyramids of ancient Egypt to the volcanic chaos of Pompeii to the harsh jungles of prehistoric Earth.
  • Revolutionary Gunstacker: Duel-wielding is for lesser men. Serious Sam Double D’s new Gunstacker allows Serious Sam to stack any combination of weapons one on top another and fire them all at once. Two shotguns on a laser gun and grenade launcher? Of course. Four chainsaws and a flamethrower? Yes, please.
  • Legions of Bizarre Beasts: Clash against classic Serious Sam enemies like Headless Kamikazes, Gnaar, and Biomechanoids or gun down all new monstrosities like the insane Chimputees, oddball Vuvuzelators, and the surprisingly sexy Femikazes. Prove your worth and take down four amazingly unique bosses in epic showdowns full of carnage!
  • Challenge Rooms and Serious Secrets: Keep the action coming with a battery of action-packed challenge rooms filled to the brim with waves of attacking beasts! Get really serious and try to uncover dozens and dozens of secrets hidden throughout this wild world!

System Requirements

    • OS: XP, Vista, 7
    • Processor: 2.0 GHz or faster (Dual-core recommended)
    • Memory: 1GB
    • Hard Disk Space: 500MB
    • Video Card: 128 MB Card, supports Shader Model 2.0
    • DirectX®: 9.0c
    • Sound: DirectX 9.0c Compatible sound card
    • Additional: Microsoft Xbox 360 Controller or XInput controller
Customer reviews
Customer Review system updated Sept. 2016! Learn more
Very Positive (473 reviews)
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244 reviews match the filters above ( Very Positive)
Most Helpful Reviews  Overall
62 of 70 people (89%) found this review helpful
20 people found this review funny
4.5 hrs on record
Posted: May 8, 2014
Where else can you combine a tommy gun, shotgun, rifle, chainsaw, and rocketlauncher into a single gun? Where else I ask you... WHERE ELSE?!
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30 of 35 people (86%) found this review helpful
3 people found this review funny
5.0 hrs on record
Posted: December 2, 2013
This game is god damn insane which is amazing. You get to do some of the most retareded stuff for fun.

Want to stack up to 6 guns on top of each other and shoot? Done.
Want to kill monsters 50 times your size? Done.
Want to kill 30+ monsters on the screen at once? Done.
Want to kill dinosaurs with chainsaws? Why the hell not.

It also has amazing humour and tons of secrets to find making replaying the game all the more fun.

All this crazy ♥♥♥♥ crossed with Co-op and Versus with a low price of $10 and it dropping to $.99 on sales, it is a great game to pick up.

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53 of 75 people (71%) found this review helpful
14 people found this review funny
3.0 hrs on record
Posted: March 21, 2014
You know when your trying to find a fun game in a store (local game obtaining place) and you see a game at the corrnor of your eye? And then you slightly move closer to it, to eye up the cover art and scan for signs of a good game. You move closer and closer to the game making werid nosies like "ermg whats this have i found an amazing game or just another ♥♥♥♥" and you dont realize the store Clerk giving you werid looks as you stumble towards the game you have set your eyes on. But then some ♥♥♥♥♥♥♥ takes the game off the shelf and announces "Huh duuuuude this game is da bomb" and goes to the till and pays and leaves with the only copy of the game! And your left there all alone standing still in the middle of the store (Looking like a lost child in a busy amusement park)

Now your probably wondering wtf this has to to with the game im writing a review on? And the answer to that my friend it has absoulty nothing to do with anything in this game.

Now on to the real review:

So what does this game have on offer for such a lovely man/woman/shehulk/werewolf/gay-vampire-kid/Pony as your self? well.....

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15 of 15 people (100%) found this review helpful
1.2 hrs on record
Posted: October 10, 2014
Revived my love for the Serious Sam series.

The gameplay is non-stop fun, enjoyed along with some excellent background music.
I would describe this game as an platformer/shooter crossover, with strong emphasis on humour, unnecessarily brutal and gory violence, big aliens and big explosions. And flamethrowers.

Great game!!!!! :)
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23 of 30 people (77%) found this review helpful
21 people found this review funny
15 of 16 people (94%) found this review helpful
10.6 hrs on record
Posted: October 20, 2015
Short version: 74% (79% for the original edition)
Serious Sam Double D is what many other Contra clones strive to be: lots of action, great level design with several secrets to explore, simple but enjoyable story, decent humour, and a weapon system that is so ridiculous it is actually awesome.

Long version:
In 2011, CroTeam allowed some indie developers to freely expand upon the Serious Sam franchise. Serious Sam Double D was probably the best result: a 2D sidescrolling shooter/platformer, where your shoot, jump, shoot, use a jump pad to jump higher, and shoot some more. This game likes shooting.

This game likes shooting so much that it implemented probably the stupidest, yet coolest weapon handling system in gaming history: you can find wrench-shaped connectors that let you stack any weapon on top of each other. Want to fire a shotgun, plasma rifle, rocket launcher, grenade launcher, flamethrower, and assault rifle with a single trigger? Now you can do it.
The XXL update also added a shop system, where you can buy additional weapon mods to enhance your guns with a variety of abilities. As a drawback, this introduced money grinding.

The plot is the funny kind of stupid, taking you all over the world (the series-defining ancient Egypt, the Jurassic era, and Pompeii) battling Mental’s forces, including new enemies like kamikaze kittens or rocket-legged monkeys. (The story mode in the base game is voiceless, but the XXL edition is fully voiced now.) It’s not much, naturally, but this game is more about the fun action, just like the original series.
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13 of 15 people (87%) found this review helpful
10 people found this review funny
6.5 hrs on record
Posted: June 20, 2015
Because six guns are better than one.
Serious Sam: Double D XLL is a bombastic, flippant, amusingly grotesque game that compensates for a lack of wit with hyperactive energy and overstatement. Patch together up to six guns, blow up killer monkeys, and travel through time to slay dinosaurs and dodge lava balls spewed from active volcanos on the way to conquering an enormous final boss. It makes no sense and, outside of the gun stacking, doesn't do anything especially novel, but Mommy's Best Games' 2D shooter is fun the whole way through. It's like an interactive coloring book made by a 10 year old obsessed with metal music.
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9 of 9 people (100%) found this review helpful
14.1 hrs on record
Posted: June 25, 2014
100% Completion Review

Needs Even Bigger Guns!

A fantasticly fun 2D platforming shooter, flavoured with Serious Sam Sweetness. This game is as enjoyable as it is funny, combining a mixture of guns together into one mega-gun so you can take down dinosaurs and gorillas with blades for hands. This game features lots of re-playability and challanges for more unlocks and hidden secrets. Whether your a fan of the Serious Sam series or just a fan of platformers, this game is a must have!
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12 of 17 people (71%) found this review helpful
52.3 hrs on record
Posted: January 28, 2014
This game got a lot of poor reviews since it isn't something that is likely to appeal to the sheeple mainstream, but I absolutely adore it. It is the most fun I've ever had in a 2d sidescrolling shooter, and for speedrunning or just generally screwing around it is a blast (especially once you get the jump pad and master its use). Sure, the premise/story/gunstacking/etc. stuff is silly and over the top, but this is Serious Sam! It's all *about* the insanity, and despite DDXXL being a kind of 'side game' to the FPS trilogy, it is actually one of my favorites.

If you like frantic shooters, tons of secrets to discover, advanced movement-based abilities, completely ridiculous scenarios, a very unique visual style, a decent amount of challenge modes, and just generally blasting the hell out of everything you see... Serious Sam Double D XXL is for you. Screenshots absolutely do not give it justice, and many of the videos I've seen just don't capture how fun it is to *play*.

For the traditional Serious Sam fans: I understand why you wouldn't really be interested DDXXL, but give it a shot as if it's a totally different franchise... I think you'll really enjoy it once you get used to its oddities. Yes, the campaign is fairly short. Yes, some of the challenges are just spam-fests. But it has fun enough gameplay and mechanics that you'll love to replay it over and over.

And for those that like to speedrun, glitch, etc. this game is a treasure trove of awesomeness. Some may consider that a symptom of a buggy/predictable/whatever game, but it's really only like that if you're intentionally trying so I consider it a feature. Have fun breaking it to bits and seeing what kind of insanity you can cook up!

My only real complaint: the unlocked difficulty levels really aren't that much harder since you start with all your guns and upgrades that you got during the previous playthroughs. I really wish they had made the harder difficulties packed to the gills with more enemies and more difficult situations, but unfortunately the first few levels are pretty much exactly the same on harder difficulties as they are on the easiest. This really isn't that big of a deal (as I'm sure many find the game very, very difficult as-is), and more just a wishlist item if devs ever returned to it.
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8 of 10 people (80%) found this review helpful
4 people found this review funny
1.6 hrs on record
Posted: December 22, 2014
It's refreshing to have this angle of gameplay in the long-running Serious Sam series.
Normally an FPS, this game changes it's form to that of a twin-stick shooter.

If you know Serious Sam you will know that while he himself is as serious as can be, the game he inhabits is not.
It is downright maniacal and balls to the walls insane. You never get a break from shooting. You never wash the guts off your face. You learn to like the taste of guts. Eat them for breakfast. Snacks. Hide them in your lunchbox. AND LIKE IT. YUM.

Coolest thing about this game - GUN STACK. You can literally stack your guns, any and all guns, on top of each other.
A shotgun on top of a chainsaw with a laser gun underneath a grenade launcher? YES PLEASE.
What about a shotgun underneath an assault rifle that's on top of a swarm gun that is underneath a plasma rifle?


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Recently Posted
Lord Grayback
2.9 hrs
Posted: October 23
Gun! Stacker!
Helpful? Yes No Funny
0.5 hrs
Posted: October 23
I was not expecting much depth or variance in the gameplay, but what I have experienced left me underwhelmed to say the least.

Yes, the game is simple, fast-paced and these are the only pros I can think of about this release. Other than that SS D XXL has nothing that could keep me playing for more than 30min. Even the absurdity of connecting various weapons is not enough when the game is repetitive and lacks the 'spark' to keep me engaged.
Helpful? Yes No Funny
Your Dad's Gay Lover
3.1 hrs
Posted: October 22
It's pretty fun. I wish you could zoom out though; it's kinda hard to see what's ahead of you. I wouldn't buy it for more than $5.
Helpful? Yes No Funny
4.0 hrs
Posted: September 24
Serious Sam Double D XXL is a few hours of non stop shoot 'em up Serious Sam goodness. This game was an absolute joy to play through and is a great little burst of Serious Sam.

Plus the gun stacking is phenomenal and ridiculous at the same time. In my opinion any fan of Serious Sam or of platformer games needs to play this.
Helpful? Yes No Funny
0.3 hrs
Posted: September 22
Let me get this off my chest, I HATE this artstyle. I think this is one of the worst looking games I've ever seen. If they had only chose a better looking art style then I would like this game, but it's way too ugly and unappealing
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=-[kI]-= Tissue-Hime
0.8 hrs
Posted: August 29
My overview and my opinion of the game is in my Steam Backlog series:

Helpful? Yes No Funny
2.8 hrs
Posted: August 13
Good action, its a pretty cool game. It has co op as well. You can also be creative by having to dual wield guns. ANY guns, but you have to obtain the arm machine (forgot whats it called) so you can hold more than 1 gun, you can hold up to I think 5 at once. There will be alot of shooting in this game.
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6.0 hrs
Posted: August 12
Quick Summary: A side-scrolling Serious Sam game with tons of guns, secrets, and enemies running at you. The game’s graphics are dated and the resolution is such that you’d think you should be playing it in windowed mode, but don’t do that or you’ll keep clicking off the edge of the screen during frantic battles.

You play the title character ‘Serious’ Sam Stone, a badass soldier battling the alien hordes of the warlord Mental throughout Earth’s history. Sam’s only companions are Netrisca, a computer program that for some reason now looks like a woman (think Cortana from Halo), and a large assortment of guns for mowing down aliens. I’m not sure when this game takes place in the Serious Sam game series, but since there’s time travel involved it doesn’t really matter. Just kill everyone who charges at you.

Since the game is a side scroller, your character will always be in the center of the screen, which means enemies only need to travel ½ screen to reach you. Like other Serious Sam games, a lot of the enemies have just enough life that it takes a little focus fire to bring them down. This is only a problem in the beginning of the game though, because of a new feature of this game: gun stacking. Using “connectors” that you find throughout the game, you can “stack” up to 6 guns together so you’re actually wielding all 6 at the same time and firing them all with a press of the button. Each weapon has 4 versions available, so by the end of the game you could be simultaneously firing 4 laser canons and 2 rocket launchers, shredding aliens as you go. Each gun still needs ammo though, so save your most powerful stuff for the game’s various bosses. You’ll be encountering a bunch of familiar enemies from other Serious Sam games, like the headless bombers, bio mechanoids, and kleers, along with a few new ones.

+Simplistic shoot’em up game with the ability to increase your firepower as the game goes on, all the way to “golden guns” (2x damage + infinite ammo) after you beat the game.
+Small download size, but it will still take you about 7 hours to beat Serious Sam Double D.
+When you start the game you can choose Classic or the XXL version which has improved graphics and some voice acting, rather than just text dialogue.

-The game has a lot of secret guns/connectors to be found (many of which you will NEVER find on your own), and one of them glitched out for me. I found the “secret area” but there was nothing in it so I couldn’t 100% clear the game without completely restarting.
-There isn’t much of a story to this game, just some short dialogues where Sam is wisecracking with Netrisca, or the big bad General Crabface talking with his goons. That’s not really his name, I just don’t remember what it was, and honestly it doesn’t matter.

All told, Serious Sam Double D is a decent game if you’re bored and looking to kill some aliens. It’s a mix of casual and bullet hell game (kind of), and if you’re having a hard time, you can actually choose to lower the game’s speed to give you more reaction time. Try it out, and if you don’t like it, the game is less than 1 gb to download so don’t sweat it.
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3.5 hrs
Posted: July 17
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1.9 hrs
Posted: July 4
One of the best games I've ever played! They excelled at making you feel like a badass! I got it when it was on sale but I wouldn't mind getting it at full price!
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