The Citizen Kane of Super Crate Box clones - dance with death through randomised rooms to clear your space freighter of irradiated aliens in a brutal arcade platformer shooter stuffed to the brim with unlockable weapons, explosives, special abilities and defense moves.
User reviews:
Positive (45 reviews) - 95% of the 45 user reviews for this game are positive.
Release Date: Aug 20, 2015

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July 11

SMAA Launches Today! 20% off to celebrate!

G'day Mutant Assault Team,

Today, after eleven months of balancing, tweaks, new weapons and new bosses, Super Mutant Alien Assault is launching on PC, Xbox One and PS4! It's been a great journey here on Steam Early Access, and we cannot thank you enough for your thunderous support, your invaluable feedback, and those positive reviews!

We hope that you enjoy the near bottomless pit of unlockable weapons, explosives, sidearms, special abilities, perks and defence moves we have packed into the final product, and we cannot wait to see how far some of you can make it in Endless Mode!

To celebrate the launch, we have the game on a 20% discount for launch week, so tell your friends to pick it up and challenge your best endless results!

Speak to you all soon, and thanks again!

Steve - Community Manager

4 comments Read more

June 7

Surprise Attack Sale, Super Mutant Alien Assault 15% off

G'day Mutant Assault Team! Just a quick update to let you know that Surprise Attack Games is having a sale to celebrate {LINK REMOVED} for their terminal-based hacking game, Hacknet. So tell all your friends, because there are some great deals, including 15% off Super Mutant Alien Assault!


You can also view the entire Surprise Attack Games catalogue by clicking here!

Until next time, hold onto your Boomerangs!

Steve - Community Manager

0 comments Read more

About This Game

Three fleets of spaceships flee a doomed Earth carrying the last humans in cryostasis. Pursued by aliens, it’s up to the lowly security droids to save humanity. Taking up arms solo or with a friend, you must dance with death in a brutal and addictive arcade platformer shooter inspired by Super Crate Box and stuffed to the brim with unlockables.

Fight through rapid fire single screen levels each with a random combination of platform layout, objective, vending machines and enemies. Dodge and weave amongst the aliens to stay alive but don’t leave them standing too long or the ship’s radiation will mutate them into bigger, nastier versions.

Only by unlocking and mastering the wild variety of weapons, explosives, special abilities, defense moves and perks can you hope to survive across all three galaxies, rid your ship of the mutant menace and save the oblivious humans.


- rapid fire levels give you no rest as hordes of enemies arrive, hell-bent on your destruction. Clear the objective quickly and be sure to kill each enemy before it has the chance to mutate into a bigger, nastier version of itself. Take a tiny breather and then it’s on to the next room.

- in the tight confines of the space freighter, standing still is not an option. Your ability to dodge around enemies is as important as your aim. Survival requires quick thinking and rapid reflexes and a true master of the dance is a beautiful thing to behold.

- each single screen level is randomised, drawing on a pool of platform layouts, objective types and enemies as well as which vending machines will be present. You’ll never know which weapons or grenades will spawn in the vending machines whilst crate drops containing special abilities, sidearms, perks and defense moves are also random, adding further to the mind-boggling possible combinations.

- a wealth of weapons, sidearms, special abilities, perks, explosives, defense moves and character skins awaits you. Each new unlockable joins the melting pot of random ingredients, increasing your options but also the need to master each individual element and the way they combine with each other.

- take on the mutant hordes by yourself or team up in local co-op. Two player adds further complications to master as you must be careful to avoid friendly fire from explosives and will have to share/fight over item and health pack drops.

System Requirements

    • OS: Windows XP
    • Processor: 1.2GHz or faster
    • Memory: 1 GB RAM
    • Graphics: 256MB of video memory
    • Storage: 150 MB available space
    • Additional Notes: Best played with controller.
    • OS: Windows XP
    • Processor: 2Ghz
    • Memory: 2 GB RAM
    • Graphics: 1G of video memory
    • Storage: 300 MB available space
    • Additional Notes: Best played with controller.
Customer reviews
Customer Review system updated Sept. 2016! Learn more
Positive (45 reviews)
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41 reviews match the filters above ( Positive)
Most Helpful Reviews  Overall
22 of 25 people (88%) found this review helpful
5 people found this review funny
4.9 hrs on record
Posted: July 13
1. Have you played Super Crate Box. IF 'Yes', GO TO (3). IF 'No', GO TO (2)

2. Go find Super Crate Box on Steam and Play it (It's free), and then GO TO (1)

3. Did you enjoy Super Crate Box enough to spend money on a deeper, expanded experience? IF 'Yes', GO TO (4). IF 'No', GO TO (6).

4. Is this concept worth spending $10 for you? IF 'No', GO TO (5). IF 'Yes', GO TO (7)

5. Put the game on your wishlist and wait for sale then GO TO (7)

6. Avoid this Game. It's clearly not for you.

7. Buy this game! It takes everything that is great about Super Crate Box and expands upon it in interesting ways. Certainly worth the buy if this is a genre that interests you.
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30 of 40 people (75%) found this review helpful
2 people found this review funny
7.1 hrs on record
Early Access Review
Posted: August 20, 2015
Super Mutant Alien Assault is a lot like Super Crate Box, but it brings a lot of new stuff to the table.
The game is filled with all sorts of randomised features. In each level, there are some machines set to help you out. For example, a weapon dispenser that will give you a random weapon when you interact with it. Once you unlock a new weapon, it is then added into the possible weapons for the dispenser to choose from. There are some really cool weapons, like an explosive pogo stick.

There are multiple modes that can be selected for the levels you play. Sometimes you might just need to kill all enemies in the stage, and sometimes you might be required to transport fuel tanks from one side to the other. The different modes do a good job at keeping the game fresh.

The game really picks up once you've decked out your character. You can grab all sorts of equipment from random crates. A secondary weapon which is weaker, but a good back up plan for when your primary weapon runs out, and the weapon dispenser isn't recharged. Sometimes you might get defensive gadgets like a dash ability, or a perk which allows you to double jump.

The music is really cool. It does a great job at pumping your adrenaline as you try to survive as long as possible through different enemy waves and bosses.

If you enjoyed Super Crate Box, I'd definitely recommend this.
If you never tried Super Crate Box, I'd say try this game anyway.

Overall, a lot of fun!
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18 of 22 people (82%) found this review helpful
1 person found this review funny
9.2 hrs on record
Early Access Review
Posted: August 20, 2015

I originally saw this game in the Northernlion Super Live Show, where NL played it for an hour. The game has a variety of quality and unique weapons. Also consisting of three gauntlets of levels, each ending with its own boss. Which you can complete multiple times on different difficulties. Try it out it is definitely worth the $10.


The game is running smooth like always and all of the problems have been fixed that were mentioned in the patch notes. I have had a chance to use the keyboard and controller controls. The controller is superior and highly recommended over keyboard. As it is much more fluid and intuitive.
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11 of 12 people (92%) found this review helpful
5.3 hrs on record
Early Access Review
Posted: October 15, 2015
The Citizen Kane of Super Crate Box clones. I don't think much more of a preview is required for this title but sure, lets do this. Super Mutant Alien Assault is gaming popcorn, it's delicious, fun, and probably bad for your heart. All jokes aside, the game is EXTREMELY well put together for an early access title. The level design, controls, and aesthetics of the game are all very sharp and pleasing. The games concept is rather simple but highly replayable. Kill monsters, make it as far as you can, unlock more stuff that makes the game even more fun, rinse and repeat. This gameplay leads to the "One more game" syndrome. Making it hard to put down at times. Throw in co-op with a friend and suddenly your blasting away hours of aliens. Now like other arcade games Super Mutant Alien Assault doesn't necessarily have much staying power. It's a pick up and play type of game and then come back later after you've played something else. That isn't a bad thing, it's a familiar type of game that is welcoming and guaranteed fun. Just keep this in mind. The awesome part? This is still in Early Access, which means more content is on the way for this already exciting game. I personally can't wait to see how this game wraps up and what it's like when its done and Super!

I made a video preview to show off some of the features and gameplay of this game!
I hope you enjoy!
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12 of 14 people (86%) found this review helpful
21.5 hrs on record
Early Access Review
Posted: August 21, 2015
Dash and Grenade Launcher makes me feel creative while playing this game.

Interplay Game Mechanic, Epic Art Style and the killer sound track is what makes SMAA one of the best Rouge-like platformer out there. Killing is fun, and what adds to it, is a Grenade Launcher, Pogo Stick and Jet Pack. One of my best moment is when the sound track syncs with killing, situation gets beyond fun.

SMAA feels good, plays good and keeps you creative with randomize weapon and explosives. It makes you feel good!
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11 of 14 people (79%) found this review helpful
4.6 hrs on record
Posted: July 13
Product received for free
Note: This game was reviewed with a code provided by the developer this doesn't change my stance on the game.

Super Mutant Alien Assault is the unofficial Super Crate Box sequel that all of us have been waiting for.

Super Mutant Alien Assault as stated before is a very similar game to Super Crate Box which is a one screen platformer where the main goal is to survive long enough to see the other level, but this game has a ton of different objectives. A few of the things that levels have you accomplishing are surviving, bringing fuel, boosting thrusters and cool down pillars which will blow up and of course at the end of every galaxy there's a boss fight waiting for you.

Super Mutant Alien Assault takes place in the future where Earth has blown up and Alien ships are chasing human ships to destroy them and you play as a little droid who has to save humanity.

While the story wasn't needed it was certainly a very nice addition to an already pretty good game.

The graphics are great. The pixel art style is beyond awesome with the environments and the enemy designs being really cool.

The soundtrack is also really sweet, with techno and dubstep music accompanying the fast and tense gameplay. It might not be everyone's cup of tea, but I personally loved it and I think you will too.

The game has three galaxies to go through and each one of them is 4 levels long. All levels are randomly generated and when you die the levels will reset into something new which is a very welcome addition. To unlock the higher difficulties you will have to play through the game without dying once (which I wasn't able to do) so people who want replay value will have a lot to go through.

But people who don't like that big of a challenge don't worry, because after you unlock a galaxy you can start the game from whatever galaxy you want.

The game took me 1 hour to complete the three galaxies, but there's a lot of stuff to do. As mentioned before you can go and play through it without dying and there's also endless mode where you can put your skills to the test and try to survive as long as possible.

I didn't encounter any problems with the game whatsoever. It ran smoothly from beginning to end, so I doubt any of you will encounter any problems.

Super Mutant Alien Assault is incredibly fun and is definitely a game I will come back to in the future. It's incredibly fun and without a doubt the best Super Crate Box type of game I've played to date.

+ Insanely Fun
+ Great Soundtrack
+ Awesome pixel art style

- Only Three galaxies

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6 of 6 people (100%) found this review helpful
1 person found this review funny
6.2 hrs on record
Posted: August 21, 2015
Super Mutant Alien Assault sports vibrant and brilliant pixel art partnered with fast-paced, intense action. The countless stream of unlocks means there was always something more to see and experience with every attempt at surviving each playthrough. All the while, dubstep beats playing in the background added to my nearly overloaded senses.

The game is challenging and offers even more of a challenge with higher, unlockable difficulty modes. Although, I would have liked to see a couple of these difficulties unlocked by default.

Tight, simple controls allowed me to jump into the action with ease, giving me room to improve and attempt to master more advanced movement and positioning. It was a lot of fun zipping along levels using the dash ability.

It's no secret I really enjoy the game, however I would have loved to enjoy it with online friends – the lack of online multi-player is a bit of a letdown. Having said that, single-player is packed full of content to unlock and experience, including an endless mode for those wanting to play the game forever. Just a word of warning, it can get a tad repetitive.

Super Mutant Alien Assault offers a lot of content in a small package. Tight controls, a beautiful pixel art aesthetic, and intense and challenging gameplay make this a buy in my opinion. Now go grab a boomstick, your space freighter is infested with irradiated aliens.

Full review:

Early Access first look:
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6 of 6 people (100%) found this review helpful
1 person found this review funny
20.9 hrs on record
Early Access Review
Posted: August 28, 2015
Can't get enough of this game. I really love how the different weapons force you to adapt your gameplay, and I love learning to get good with each new weapon. Soundtrack is great, art is beyond amazing, I'm gonna be playing this all week. That being said, here are some things I'd love to see:
Windowed 2x view, so I can play without any distorted pixels (vierbit's art is what drew me to this initially)
I seem to recall the original flash game had a mode where you had to run fuel rods back and forth, and the game just got harder and harder, with worldwide leaderboards for whoever could run the most rods. That was my personal favorite part of the game, I'd love to play that mode again.
Also, I need the giant bomb weapon to be more useful. Maybe I'm just not good with it, but it never does what I want it to and is hard to detonate if your sidearm is the shiv.

Anyway, that's minor stuff. 9.5/10, can't get enough.
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5 of 5 people (100%) found this review helpful
1 person found this review funny
6.7 hrs on record
Posted: September 5
Product received for free
If you’ve played Super Crate Box but wished there was more to it chances are this game could fill that void.


The story in the game is pretty barebones and while I feel like it is there for the sake of it, it’s a nice addition nonetheless. Basically a fleet of alien ships found Earth and completely annihilated the entire planet except for 3 fleets of spaceships which managed to escape while carrying humans in cryostasis.

Despite Humanity’s best efforts in order to preserve our species the aliens still manage to track down the fleets and are now attempting to destroy our last hope of survival. You play as one of several robots which were tasked of safeguarding these last humans and you’re the only thing able to prevent Humankind extinction.


As for the game itself, it features 3 different difficulty settings which you can unlock by beating the game in the hardest difficulty available. You can play either the endless mode, once you unlock it, or the “story mode” which is divided into 3 different galaxies, each corresponding to one of the 3 different fleets and each galaxy consists of 4 levels with the last level having a boss. If you beat all the 3 bosses it’s game over and you win, simple as that. The game does offer local co-op but I’ve not been able to test it out, it’s a shame there is no online or some sort of leaderboard system though.

As far as I can tell the levels are not procedural generated, the game just picks one from a pool of handcrafted maps. However, each level can be played in a different way, sometimes you have to eliminate all enemies while other times you have to carry fuel tanks from one side of the map to the other in order to power the hyper drive to complete the mission. Each level can also have some machines that after a certain period of time can give you either a new weapon, a new type of explosives or HP. There are also crates that can spawn at the beginning of a level which can contain certain perks such as, double jump, dash, dodge, increased fire rate, etc. Overall the weapon variety is enough to keep a satisfying experience by having weapons such as a RPG, a lightsaber, shotgun, among others but I do wish the game had some unique and silly weapons that could potentially make things a lot more fun. As for the enemy variety, I think there’s plenty of it in order to keep the game a challenge, especially when there’s this certain machine which boost the enemies making them bigger and more powerful.

Now, in theory each level is pretty short and one playthrough could easily be accomplished in under half an hour but the more you play the more things get interesting because you’ll unlock new enemy types, new items and weapons that you can choose as starting gear as well as new robots to play as. That said, due to the fact that a single run is rather short, especially if you die in the first levels, the game has that “one more” feel to it. The game does start slow but as you progress through the levels the speed of the game ramps up and the game goes from this slow paced shooting platformer to a very fast paced and hectic one, and I guess that’s one of the things I really like about it.


All in all, Super Mutant Alien Assault is a very solid Super Crate Box clone that brings some new mechanics to the formula which can either appeal you or not, depending on how you like these kinds of games. Despite having a fair good amount of time with the game, I do wish there were more galaxies, unlockables and map layouts or even a little more focus on the story side of the game to keep me coming back to it every now and then, I also think a level editor and Steam Workshop would benefit this game greatly. And, while I do like the pixel art style I can’t really say the same for the soundtrack, even though it seems to be praised by others it just isn’t my thing.

If you enjoyed Super Crate Box or if you’re looking for a shooting platformer with tight controls and very simplistic gameplay with enough enemy and weapon variety, as well as unlockables, to keep things interesting, I definitely recommend you check this one out.
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5 of 5 people (100%) found this review helpful
1 person found this review funny
1.0 hrs on record
Early Access Review
Posted: August 21, 2015
An awesoem little indie title, you can barely tell its Early Access. Highly recommend you get this with a friend! It is a side sidescroller wave based game, Interesting weapons perks and mechanics that spice it up. Great visauls the retro feels I must admit I am a sucker for! Awesome DubStep music the beats help to set a very tense and action pack tone for the game. Monster if not killed right away evolve to get stronger be warned, that cute little bastad is gonna get real ugly and mean if your not careful

30 Minutes or Less, The game grabs you right away great design and direction fluid controls!

Thanks for checking out my review, let me know your thoughts on the game! Thanks!
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Recently Posted
16.3 hrs
Posted: September 21
Sorry for making that unhonest review, I bought this game at early access and I finished all the game and it's campaign like mode in within 5 hours, when the full game released I finished the new content in 2 hours. I enjoyed the game at the beginning as It was unique and all and the soundtrack was great but now It has gotten stale and for a game which cost $10 I believe it may be a bit overpriced.

The guns, the music, the mobs, the level design, the modes, all of it, make a very unique game which i believe has the potential to be much more great if there was new things added to the game.

I am just wondering when you will add new content to the game as I have not seen any new announcements about this game or any new games you will be developing. I am going to reccomend this game for what it is but I believe there should be more support to the game to fufill that $10 price tag or at least have it at a 50% off sale.
Helpful? Yes No Funny
2.8 hrs
Posted: September 3
Super Mutant Alien Assault is a fun, tense, action game with a great dubstep soundtrack, but it’s an extremely short experience. The game has several elements working in tandem that’ll keep you on your toes. The multitude of weapons. The random stage generation. The variety of the objectives. Players will never play any two levels in exactly the same way. Lush pixel art & animation keeps the eyes visually engaged while driving dubstep keeps the action thrilling. With games like this, why would super mutant aliens ever attack Earth?

+ Random weapon generation
+ Loads of guns to try
+ Energetic dubstep soundtrack
+ Variety of mission objectives

- Random weapon generation
- Extremely short length

The full review can be found here:
Helpful? Yes No Funny
0.3 hrs
Posted: August 9
Product received for free
Very fun game to waste a half hour or two with. Really fun drinking game with friends.
Helpful? Yes No Funny
10.2 hrs
Posted: August 7
Great graphics, fair amount of content (replayable; ~6 hours worth of gradual unlocks), and a suspiciously mediocre soundtrack. I wonder what's coop mode like.
Helpful? Yes No Funny
1.5 hrs
Posted: July 31
I wasn't even aware of this game untill TotalBiscuit reviewed it a while back. Basically, you play as robots scrambling to get all sorts of weapons from crates and/or machines. Then, you attempt to fend off aliens while trying to complete a randomized goal. I tried the 2 player local-coop (with controllers) and it was a lot of fun.
Helpful? Yes No Funny
1.2 hrs
Posted: July 21
This game was just good ole fun. I played through it once and am about to start a higher difficulty :) Love the different weapons and powerups. Animations and aliens are very well imagined. Well worth the money for me!
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6.5 hrs
Posted: July 19
Very fun game with a ton of weapons, abilities, and perks to unlock and find throughout a run. Each galaxy is 3 stages and a boss fight to cap it off, with every stage completed brings you closer to your next unlock. Completing a run of the 3 galaxies will unlock the next difficulty, bringing a way more challenging experience by starting you off with less health, and levels taking longer to complete. Add in an endless mode that has a leaderboard, and you have a great game with some awesome graphics and tons of replayability.
Helpful? Yes No Funny
1.9 hrs
Posted: July 19
It wears its influence(s) on its sleeves but overall seems to add enough to be enjoyable on its own merits. Add to that the great art and (not surprisignly) Vlambeer-ish polish and out comes a fun experience.

My biggest issue would be longevity. I am not sure yet how higher difficulties might change this but I beat all four stages on normal on my third try and ~45 minutes. This surprisingly also included all bosses without having them seen them before, take that as a sign of fairness or too low difficulty as you will.
While I definitely will come back to unlock more and try myself against higher difficulties I don't think that it has enough raw content to hold up after you can consistently beat it unlike something like Risk of Rain or Binding of Isaac.
So I definitely recommend it to anyone who enjoys this kind of rouge-lite 2d gameplay and who doesn't demand dozens or even hundreds of hours out of every game.
Helpful? Yes No Funny
11.5 hrs
Posted: July 16
At first glance this game reminded me of 2D flash games I played when i was younger.

Little did I know it is completly different.

While the overall taks you have to solve are limited, yet the game is really refreshing.

Since you unlock new things with every playtrough the game-experience progresses with your progression.

I really like the game and pkay it every now and then - mostly until I ragequit since I am too bad to beat one of the various boss enemies.
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