This jam is now over. It ran from 2021-05-14 19:00:00 to 2021-05-16 19:00:00. View results

The theme for the jam is: DUAL PURPOSE DESIGN

Read more about the theme here:


Welcome to the third bi-annual OPR Game Jam!

This is a 48hr game making marathon, focused on creating one-page miniatures games. The game jam runs from  May 14th, at 8PM UK time / 3PM ET time, to May 16th, at 8PM UK time / 3PM ET time.

Join the OPR Discord server to chat and find a team (if you want one):

Submission Rules:

  1. The game has to follow the theme: Dual Purpose Design
  2. The game must fit on a single sheet, using the template provided here:
    • The front page must contain all of the game's core rules.
    • The back page may optionally contain rules on unit creation or special rules.
  3. Every game must be submitted along with the following:

Please make sure to submit your game in .pdf format so that it's easy for everyone to read it on mobile and desktop!

Example of a what a correct submission should look like:

Check out the last jam for more examples:

Here's everything else you need to know:

  • Who can submit? Anyone can submit a game,  and you may work alone or in teams.
  • Who will judge the games? The games will be judged by the public, and then we will highlight the top 3 voted games on the OPR website. There is no winner or prize, it's all just for fun!
  • What will the games be judged on? This is a contest in simple, clear and interesting design, so gameplay and readability are more important than complexity and simulation. The criteria for judging will be "Design", "Originality" and "Adherence to the Theme".
  • Who has the rights on games created during the jam? The game creators retain the rights to their own games, and they won't become part of OPR's catalogue of games unless specifically agreed between the creators and OPR after the jam.
  • Anything else? Submissions may not contain nudity, hateful language, or hateful images.



All submissions

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Pay your them in coin, your mark, and a taste of eternal life
A Tabletop-RPG system where you and your friends are in a magical cyberpunk world
Large fleets clash over planets. Deploy your fleets and lead them to victory.
Skate or Die!
Bounty Hunters, Powerful Guards, Sneaky Hunts, oh my!
A tabletop game where superheroes are trying to save civilians while every building collapses.
Shoot and scoot - your guns are your engines!
A physics based wargame. You heard me right.
A game of hunting undead for money and glory.
A hex-based programming battle game.
OPR Game Jam #3 Submission - Small scale automa arena combat with interesting activation mechanics.
The movie Predator but legally distinct