This jam is now over. It ran from 2026-05-30 09:00:00 to 2026-05-31 22:00:00. View results

**Special Notice** This jam is starting an hour early, making it a very special 37 hour jam!!


Welcome >> 
The Devs That Jam Monthly 36-hour challenge is a speedy Jam where participants are challenged to create a game based on a community-chosen theme within 36 hours! Submissions must be made within the timeframe, but pre-made assets and snippets of code from old projects may be used.

Devs That Jam is a virtual hub for game developers who love participating in Game Jams, run entirely through Discord.

Join our online community of over 1500+ Jammers on our dedicated Discord server!

Theme>> The theme for this month's jam is… MUTATION!



Voting>> At the end of the jam, a voting period will last until 10 pm BST on the following Wednesday. Your game will be rated on:

  • Experience: How interesting and fun the game is to play. 
  • Theme: How well the submission incorporated the monthly theme.
  • Functionality: How readable and intuitive the game's mechanics are.
  • Visuals: How good the game looks. Does the art style match the gameplay?
  • Audio: How well audio is implemented within the game (SFX & Music)
  • Polish: How 'complete' the game feels. Does it have all aspects of a game?

This is a Submission & Contributor only vote. 

Prizes >>

DTJ36 Overall Winner's Prize:
The Devs That Jam 36-hour challenge rewards a prize to the submission with the highest ratings at the end of the jam's voting period. The winner will also have their submission showcased in the 'Hall of Fame' on the Devs That Jam website! [https://www.devsthatjam.co.uk]

Prizes include:

  • A DTJ merch bundle including: a keyring, pin badge & stickers! (Postage included)
  • An excerpt from Joe Stout's Learn to Code in 30 Days using MiniScript
  • A free 12-month Easle+ subscription (worth $60)
  • A 1-Year membership to Craftpix.net Premium!


[img. pending]


TO CLAIM YOUR PRIZE:

  1. Your submission has to follow the theme - every submission is voted on, but there is a tick-box during upload that lets you tick whether you have followed the theme. The winner of the jam will be decided depending on the public vote and the moderator's vote. 
  2. Max 4 people to a team for both categories - If your team has more than 4 people, you will not be eligible for the prize. Please make sure to have linked all team members BEFORE the results are released.
  3. All team members have to respond within 48 hours - A DTJ Mod will reach out to you via Discord with details on how to claim your prize after voting has closed. [You must be a member of the DTJ Discord server to receive a prize]

Partners & Sponsors >>

CraftPix.Net Logo

Craftpix.net is an online store and resource specialising in providing high-quality, premium and free 2D game assets for game developers, indie studios, and hobbyists. 

This month,  Craftpix.net is generously gifting the Winner / Winning Team of this month's Jam a 1-year FREE membership to premium game assets!

Check out their website here.

Easel is a programming language designed specifically for games, which is what makes it more concise, productive and simpler to use as it has a lot of common game-making features have been baked into the language itself. Most notably, it can make your game multiplayer automatically!

The Winner / Winning Team of this month's jam will receive a free 12-month Easle+ subscription (worth $60)

Check out their website here

MiniScript Logo

MiniScript is a moderneleganteasy to learn programming language,  and is easy to embed in your own C# or C++ projects. It's also open-source and has been under continuous development since 2016. 

Mini Micro is a neo-retro virtual computer that allows devs to create programs and games using MiniScript.  You can try out Mini Micro here.

The Winner / Winning Team of this month's jam will receive a free excerpt from Joe Stout's 'Learn to Code in 30 Days' using MiniScript! You can buy the full book here.

Rules:

Read the DTJ rules here.[https://www.devsthatjam.co.uk/rules] Anyone who breaks the rules will be disqualified from the jam.

No NSFW content.  Graphic content and trigger warnings must be clearly labelled with a content warning at the start of the game as well as in its description or cover. Anything inappropriate will be disqualified. 

FAQ:

Can I submit a game I made previously?

No. You can only submit a game created within the jam's timeframe.

Can I make changes to my submission during the voting period?

No. Submissions are locked during the voting period but are unlocked afterwards. If you need to update your game after submission, please reach out to a moderator via the DTJ Discord. Amended games will not be eligible for prizes.

Do I have to follow the theme?

No. Your game will still be rated, will not be eligible for prizes.

Can I use code and assets from my other jam submissions?

Yes, as long as you have the rights to use it. The DTJ 36-hour Jam isn't strict on the "build it from scratch" rule.

Do I have to upload my submission in a particular format?

We recommend you upload your game so it is playable in the itch.io web browser. However, a downloadable file also is fine, but your ratings may be lower. Some submissions may be bigger than itch.io's 1GB download limit - we recommend linking to a public Google Drive folder to work around this.

Do I retain the rights to my submission?

By submitting a project to this jam you are agreeing to have your game rated and commented on, and for your submission to be displayed on the DevsThatJam website and socials if you/your team are chosen as this month's winner(s)! The rights to the project remain your own. Submissions unlock after the rating period.

I couldn't submit on time, what do I do?

There will be an announcement on the DTJ discord server about how to submit late if you missed the deadline, so please make sure to join!


Support >> Please consider supporting Devs That Jam! 

The DTJ36 game jams are free of charge with no entry fee.  Winners are rewarded with a small prize every month, which includes a Steam gift card and DTJ merchandise. As an individual game dev funding all of this, it can get quite expensive, so thank you so much for any support you can give!

Please consider supporting us via Ko-fi! This could be a one-off donation, a monthly donation or a merchandise purchase!  I am extremely grateful for the support, as each cup of coffee/merchandise sale adds to the yearly prize fund for the monthly DTJ36 jams, keeps the Discord server boosted, and the website up and running! Thank you! ~EggyBreadd


Submissions(27)

All submissions
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Browser playable (23)
·
Windows (5)

No submissions match your filter

Punishing roguelike where death is only the beginning.
Action
Play in browser
Collect your brethren and escape your fate.
Puzzle
Play in browser
Using the Brain
Puzzle
Play in browser
A Small game where hooking away might be the best solution
Shooter
This is my first game jam that I'm somewhat proud of for the DTJ36 game jam
Shooter
Play in browser
Horros FPS
Shooter
Play in browser
A beat-em up where you fight mutants as one yourself.
Action
Play in browser
Neon Gardening mass spring puzzle game
Puzzle
Play in browser
Deep in a radiated, abandonded, corporate building, are a bunch of FREAKS!
Puzzle
Play in browser
https://play.unity.com/en/games/64895990-34cc-47fb-8f90-82f4249de952/mutant-chicken-farm
Action
Play in browser
vampire-like survival
Adventure
Stop the art mutation
Simulation
Play in browser
Action
Play in browser
Fren's the name, mutation's the game
Play in browser
Made for dtj36 #26 game jam
Play in browser