A downloadable game for Windows, macOS, and Linux

Get this game and 4 more for $17.95 USD
View bundle
Buy Now$3.95 USD or more


They say it started in a lab, but no one knows for sure. It doesn't matter anyway, you just need to survive another 10 minutes!

  • Take on never ending hordes of zombies and other monsters 
  • Level up weapons and passive abilities to suit your playstyle
  • Upgrade gear between runs to increase your odds of survival
  • Get to the choppa!

Originally made for Lowres Jam 23 where it placed #1 in the gameplay category!


Attacking is done automatically! Move your character to line up your attacks and avoid the zombies.

move -  ⬅️ ➡️ ⬆️ ⬇️
select - ❎
back - ⓩ

Tips and tricks

In Outbreak, your survival depends on your fire power and passive abilities as much as your skill. 

  • Level up early and often, put pressure on the monsters and get that XP
  • Spend your hard earned chits in the upgrade store sooner than later
  • Find a good balance between your main weapon and other abilities


Originally created during LowResJam 2023

Design/Art/Code: Johan Peitz (@johanpeitz
Music/Sound: Vav (@VAVMUSICMAGIC)

For more games like this -  check out my Patreon! ❤️


You can get download updated post-jam version of the game! It has lots of improvements including more weapons, more enemies, new graphics, and lots of stability and performance upgrades!


  • Come over to our discord if you feel stuck or just want to brag!
  • The pico-8 png cart that is included with the purchase is minified in order to fit on a single cart. Doesn't affect how it is played, but the source is unreadable.
  • The pico-8 png cart made for running on pico-8 installs. Your milage on emulators may vary.

PlatformsWindows, macOS, Linux
Release date Aug 14, 2023
Rated 4.8 out of 5 stars
(17 total ratings)
AuthorJohan Peitz
GenreSurvival, Action, Shooter
Made withAseprite, PICO-8
Tags2D, Lo-fi, LOWREZJAM, PICO-8, Pixel Art, Retro, Zombies
Average sessionA few minutes
InputsKeyboard, Gamepad (any)


Get this game and 4 more for $17.95 USD
View bundle
Buy Now$3.95 USD or more

In order to download this game you must purchase it at or above the minimum price of $3.95 USD. You will get access to the following files:

RC5.zip 507 kB
Outbreak 1.2 (Windows) 995 kB
Outbreak 1.2 (Mac) 3 MB
Outbreak 1.2 (Linux) 754 kB
Outbreak 1.2 (PICO-8 cart) 39 kB

Development log


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Now that the .p8.png file cart has been released, has anyone actually got this game working on their handheld devices?

RetroArch on Android using either the retro8 or fake8 cores doesn't work, retro8 core just goes to black screen whereas fake8 core has an error message. P8 Player from the play store also doesn't work, just throws a bunch of errors on the screen.

Wonder if this is core related issue and not the .p8.png cart file?

Very fun! Love the music too.

Love the look of this! Is the .p8 file included if I purchase? I’d love to play it on my retro handheld


Thanks! Not yet but will be. Plan is to include a minified png cart 


Thanks for asking this question, I too have retro handheld device(s) I would love to play this on the go.

Also looking forward to a .p8 minified png cart!

I've included Outbreak in my LRJ video @ 37:09

Nice game. I didn't enjoy Vampire Survivors, but I like this one.

What does Stamina do? I don't understand it's description.

Also, strangely enough, I find Katana easier to play with than pistol.

Stamina makes some attacks last longer, mostly noticeable in the saw blades 

(1 edit)

I ended up becoming a literal death machine with max shuriken, cooldown and attack levels. I even had near max shotgun and sawblade levels for good measure. I carved a path to the chopper with machine-gun shuriken shots, so that was fun.

Pistol run complete; I'm starting to get the hang of this. Katana run is going to be the real challenge, though.

And then the Katana run - or, as I like to call it, the "lawnmower run" thanks to max cooldown and area, plus a few sawblades. Overall, a great little game for some quick fun.


i did it

Way to go!

yippee also amazing game 

Liked the game concept and mechanics. Enjoyed the game overall! 

(1 edit)

Ooops, got an “out of memory” error after messing about after the chopper landed while trying to max out the character XD Had just picked up a bomb.

Yeah, there is something there that doesn't like the bomb. At all! :D 
I think the problem is that there is no cap to the amount of enemies you can spawn, and if you explode them all at once the game is pushed beyond it's limits...

Ah, well still very good game all the same!

(1 edit)

Finally! Ended up with 4 Sawblades and 4 Shurikens, lots of Cooldown and Damage upgrades, Piercing +1 and some Area, Regen and Armor upgrades.


Good job! :D

Next goal: Starting with the other two weapons ;-)

i beat it B)


(1 edit)

oooo, another vampire survivors like game in pico 8, nice! (also do you plan to release it on lexaloffle?)


Glad you like it!

Quite the opposite actually, my plan is to make an updated version that will be paid 

alright, tbh I was kinda hoping to see how you did the code lol, it's impressive

Woohoo, finally beat it! Great game!


Woohoo! Good job!

I liked it! You could normalize the speed so it doesn't move faster diagonally

Yeah, that’s on my post-jam todo list. Scrolling looks a bit wonky at this resolution if not doing it properly so it’ll need some investigating

see Krystman shmup serie on ‘diagonal move’ for some ‘ahah’ moment

aaah! Thanks for reminding me of that one!

really cool little game, I like it :)

Happy to hear, thanks!

As always, I love your low-res graphics and pixel art! The game mechanics are super fun, and the concept is creative. The simplicity of your HUD with the countdown is helpful in such a small space. Great game! I really enjoyed playing it!

Thank you so much for the kind words Matt!

Very fun - great take on the genre. GET TO DA CHOPPAAAAA!!


Thanks! Will have to update the operator portrait to arnie :)

Addicting. Great game!!! 

Thanks! Appreciate it!

Great game! I love the upgrade system.

Thank you! 

Great job!

Excellent work! I found myself still playing even after I beat it!

that good to hear! 


Good game!

happy to hear you enjoyed it!