This jam is now over. It ran from 2021-11-12 20:00:00 to 2021-11-14 20:00:00. View results

The theme for the jam is: REDESIGNING FAILURE

Read more about the theme here:


Welcome to the 4th bi-annual OPR Game Jam!

This is a 48hr game making marathon, focused on creating one-page miniatures games. The game jam runs from  November 12th, at 8PM UK time / 3PM ET time, to November 14th, 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: Redesigning Failure
  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:
    • A visual moodboard for the game. We recommend using BeFunky (it's free):
    • (Optional) Pictures of you playing the game, the miniatures, the table, etc.
  4. Once the jam is over, you MUST vote on all the other submissions, or else be disqualified.

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.
  • How many games can be submitted? Each participant/team may only submit one game.
  • 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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A 28mm miniature skirmish game about battles in the subconscious.
Your mind is software. Your body is hardware. Crime is your program.
A stealth miniatures game for 1-4 players for OPR Game Jam #4
Mech on Mech combat in a tug-of-war game
Create the dungeon as you explore it.
A clash of the arcane, as two wizards in a tavern, duke it out over a game of cards gone wrong.
A skirmish at the end of humanity
Be the very best... but at what cost?
When you're under fire, turn it around - make your opponents feel the heat!
Slide on rails, shoot the other guys, grab the goals. Be careful tough, those that die might just come back stronger.
Have a good Death!
Kill and Pray
A simple game about gods trying to kill their own followers and burn their own temples
Deadly skirmishes in the old west
A two-player space epic about a rebel alliance and an evil empire, just requires dice, 2 pages of rules
The Duels of Warrior Robots between various scrap mechs of the locals of trash planet worlds