A downloadable game for Windows and Linux

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A free demo for the upcoming game ULTRAKILL, coming to early access in 2020.

ULTRAKILL is a fast-paced ultraviolent old school FPS that fuses together classic shooters like Quake, modern shooters like Doom (2016) and character action games like Devil May Cry.
Mankind has gone extinct and the only beings left on earth are machines fuelled by blood, but now that blood is starting to run out on the surface, machines are racing to the depths of Hell in search of more.

  • Use your many movement abilities to stay mobile in the face of unending swarms of the dead, demons and other machines.
  • Destroy them with an arsenal of incredibly powerful weapons, each with multiple available variations.
  • Soak yourself in their blood to regain health and keep fighting.
  • Kill fast and stylishly to rack up a combo and gain style points that can be used on weapon variations between missions.

It's kill or be killed... And every split second is a matter of life and death.

ULTRAKILL Prelude features:

  • A tutorial, 5 levels and a secret mission.
  • 4 enemy types and 3 bosses
  • 2 weapons with 2 variations each
  • 2 difficulties
  • Tons of replayability

Come join us in the ULTRAKILL discord and let us know what you thought of it or if you have any suggestions for the game:


Or follow the game on twitter or youtube to stay up to date on the game's development:




Download NowName your own price

Click download now to get access to the following files:

ULTRAKILL Prelude v103b.zip 129 MB
ULTRAKILL Prelude v103b Linux.zip 131 MB

Development log


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Is there a new version on any other website that is i can download. I seen level 1-3 on your youtube channel and though maybe there was a new version. If not thats alrigh cant wait to see what this game will have to offer when its released.

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Sorry, but this prelude is all you're gonna get until the game comes out on early access in 2020. I post development updates on youtube and twitter so people can see how it's progressing, which is why there are videos of levels that aren't in the demo.


I just beat the game and JESUS CHRIST! this game is freaking awesome! can't wait until full release!

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LoL I made sword machine sleep and he's angery, I just punch him but he get angery and dies


i feel happy that i finally complete this awesome game, cant wait to buy it!


Played the demo on Linux, absolutely fantastic (and frantic).

Looking forward to the full release!


I absolutely love this game, especially coming from someone who dearly loves doom-like arena shooters. I feel that the graphical effects often covers-up the surroundings and I often die not from enemies, but by falling


Have you tried turning off or toning down some of the PSX effects? That tends to help with clarity for people who have issues.

thanks for the advice. After changing the settings, the clarity was perfect. Thanks for the help


Super Addicting! The fast paced nature definetely added to it, I'm looking forward for the demo coming out in the near future! And quite possibly, even A FULL GAME


Played this some time ago and had an amazing time with it! I enjoy coming back to it here and there and blasting more enemies. 


My god. This is the sickest shit in the goddamned world.

This game was awesome. I did not make it through sadly but I did realy enjoy myself.

I finally Complete the 5 level in ultrakill, FINALLY IT WAS REALLY HARD!! Now I am free outside and cool Ending!! You can see the truth in this video, Thank you for Creating the Game

Really cool game you've made!
Everything runs real smooth and the graphics are a nice nod to retro games such as Doom. Speaking of which, I think you made Doom fans proud with this game. It is fun, yet challenging at the same time! 

I have to say, at first, the camera was a little weird to me, but once you get used to it, it really works well.

Unfortunately, I did not get to finish the demo, but that's because of my personal preference and taste in games, not because of this game itself.

I've also made a video on my experience playing the game, feel free to have a look, and best of luck with the project!

This is one of the best pixelated shooter games i have ever played! It totally remainds me of DOOM game, so fast pasted and difficult to beat. The bosses gets harder and harder as you progress which i loved :) Great game i would rate it 10/10! 

4 things 

1. I LOVE THE GAME! im up to cerberus (right spelling?) and he is so hard!

2. i think you should change the walkers speed or at least animations cause it looks a bit weird

3.what does marksman revolver actually do?

4 how much would the full game be ill definatly consider buying it if it less the $7

again AWESOME game!

3. The shop has a description that tells you what it does.

4. Probably around $15 or so.


i absolutely love this, the art style and gameplay are top notch. I love the unique mechanics i.e. the deflection of projectiles w/ a punch, the really far sliding, the mid air dashing with quick invincibility, the ground pound, its all very fluid and good feeling. Keep it up! I am 100% looking forward to the full game :)

Oh yeah!, and if you're open to feedback, and this is coming from a total ignorance about game balance and development.

The pistol that has the secondary fire mode of throwing the coins should maybe have a faster fire rate but less damage on body shots, just so you can like drop the 4 coins at once and shoot them in the air, that could be badass.

Coins already chain, if you hit a coin it'll prioritize other coins and hit those instead of an enemy, increasing the power of the shot with each coin.


I absolutely love this and can't wait for it to be finished!, was going to say, if you ever need music for this, I can help you out, and of course do it for free!, I'd love to help in a project like this.

You can find me in youtube as nahupyrope

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devil may cry more like devil will cry

what are the system requirements? I would like to know if it runs in windows 7.

It should, but I havent had the chance to try. Give it a shot and let me know.

Playing it on a low end computer is kind of a bad idea. Massive lag spikes included.

not really big ones but little ones whenn too many enemys are close to you

it runs smoothly i use o windows 7 :D


Now this is totally crazy. Loved the old school vibes and the atmosphere.

Here is a short video we made while playing:


I saw your game on vinesauce's stream, and as a lover of retro fps games, I had to check it out. I really liked it, but there was one issue: I was able to cheese the last boss on violent difficulty by continuously (wall?) sliding on top of one of the corner pillars. I was scoring headshots as they kept trying to charge into the pillar. That's a shame, because I really like the challenge of the encounter and how it jumps up halfway through.

I'll take a look at fixing that.

I am really happy that you made this awesome game, it also reminds me of a game called (half life) I played it when I was jung, now I decided to search a game like half life's graphics so I found this game ultrakill, keep up the good work
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Your really good at making games, but that's the big problem!! Why I can't beat the last boss in level 5 ?? He's way stronger and when I kill the first boss the second boss gets angery, please edit this, it's really hard

It might be too hard too early for the full game, so I might make them easier there, but since they're the final boss of the demo, I'm fine with them being really hard in this. If you're having trouble with an enraged Cerberus, you should try getting them both to low health before killing one. That way you can quickly kill the other before it can do much in rage mode.


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This is by far the best linux (GNU\Linux) game i've played after Xonotic and Quake 3. Any tip how to beat those gaurdians of hell ?

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Its really about attacking both of them to get them to about the same health, so when one dies you can kill the other one quickly and call it a day. Also a large part of it is about timing the dashes right before he attacks, and I used the revolvers lazer power-up to regain health quickly. Its painful but you can do it after some practice and getting used to his attacks.

How do you find the secret level?

It wouldn't be much of a secret if I just told you, but I can tell you it's in 0-2.

I really need help with swordsmachine

(1 edit) (+1)

None of his swings can reach you if you're in the air, so jumping around helps.

Also remember that you're fully invincible for the entirety of your dash, so you can pass through sword swings.



Gave it a go...


Damn that game looks fine!


That was amazing. Please continue development and take as much time as you need. One suggestion is that, at the edge of platforms there should be an invisible extension so that jumping off stuff is easier to time and more forgiving. 9/10 would slay statues again.



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I very, very much enjoyed my time with this game. Love the traversal techniques, the abilities (seriously, flipping that coin and honing in shots off feels very, very satisfying) -- loved the aesthic, loved the soundtrack and OH OH THAT OPENING. So rad. Everything about this game is rad. Can't wait for more content.

Wow!! just wow its the best shooting game i ever played

on this site i really like the dash mechanic and the effects

the game is so beautiful and the design is nice

reminds me of doom back in the old days!

great job!

looking forward for future updates!!!


i was amazed just amazed demo or not this games going places

Great game, hope you all enjoy the gameplay.

I loved this game. Keep putting out new content for it.

Sorry, but the content in the demo is all the content you're gonna get until the full game comes out.


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finally killed the last boss gj man i have a question as a new dev (15yo) for how long have u been developping games??


I started around 3 or 4 or so years ago, mostly just doing small projects like experiments and jam games. ULTRAKILL is my first big project :)


As a big fan of recent fps "demakes" like DUSK and Devil Daggers, I can say this is by far one of the most creative FPS games I've played in a long time. The Character Action systems really add a ton of replayability. I cannot wait for the full release.


I'm hooked.

I forgot there was so much red inside of meat bags! Awesome work!

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