Submissions open from 2026-08-27 18:00:00 to 2026-09-10 18:00:00
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The Heavy Weight Jam is a weight gain and expansion themed jam. You'll have two weeks to make a game featuring both expansion of some form and the jam's main theme (which will be revealed when the jam proper starts.  Stay tuned!).

Rules

  • Your game must not contain underage content, ferals, or anything else violating itch.io's terms of service. https://itch.io/docs/legal/terms
  • This is a NSFW jam.  You must be at least 18 years of age to enter, and your games must be tagged appropriately.
  • Generative AI content is not allowed.
  • You may reuse basic assets you have made or have license to, but we encourage you to make as much as you can within the time frame.
  • Your game must run either in browser or on Windows.

Categories

  • Gameplay. How engaging is your game to play? How smoothly does it function?
  • Presentation. Art, music, narrative and how they all tie together to enhance your game.
  • Use of Theme. How well integrated in the theme in your game? How did you creativity interpret the theme? 
  • Use of Fetish. How well integrated is weight gain/expansion in your game? Would you have the same game if you removed all these elements?

Your entry will be judged on a scale of 1 to 5 in these four categories

Prizes

  • First Place: $150
  • Second Place: $125
  • Third Place: $100

Be sure to use the community tab to find teams and ask questions!

Banner art drawn by Hench4Hire