This jam is now over. It ran from 2021-06-11 18:03:00 to 2021-06-13 18:20:00. View results

This is a 48 hour game making marathon, focused on design, mechanics, and clever ideas. The jam runs from June 11th, at 7PM UK time, to June 13th, at 7PM UK time.

The theme for 2021 is Joined Together.

Here's what you need to know:

Who can enter? Anyone, of any age, from anywhere. You can work alone or in teams.

When does the jam begin? The jam starts at June 11th, at 7PM UK time. And it ends at June 13th, at 7PM UK time.

What is the theme? The theme is Joined Together!

What can I make my game in? Anything, provided you can upload a file that runs on Windows or browsers.

What assets can I use? The game should be developed during the jam, but you may use some pre-existing code and can use whatever art and audio assets you have the legal right to use.

Who will judge the games? Games will be judged by the public. Mark will then play the Top 100 games and pick his favourite 20. All of the results will be revealed when this process is over.

What will the games be judged on? Games will be ranked against the following criteria: fun, originality, and presentation.

Is there a Discord I can join? Yes! It will be made available to all jammers on June 1st. For now, click here to gain access.

Further rules:

- Full rules can be found at

Legal bit:

- Anything you make during the GMTK Game Jam is your property. GMTK claims no rights or ownership of your game. 
- Any game submitted to the GMTK Game Jam may show up in a GMTK YouTube video without your express permission.

Want to see past winners? Check them out here.