This jam is now over. It ran from 2025-07-02 20:30:00 to 2025-07-14 05:30:00. View 16 entries

This is a jam about making an update to a game that you've already released.

Why not give our old games some much needed love? Create an update during this jam that breathes new life into an existing game.

That's it! Use these 11 days as a deadline to plan, execute, and release your update.

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This is an unranked jam. Feel free to share your progress in the forums!

Submissions(16)

All submissions
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Browser playable (9)
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Windows (7)
macOS (1)
Linux (1)
Android (1)

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A ZX Spectrum/C64 inspired one screen platformer.
Platformer
Play in browser
You're a drug dealer, good luck bucko!
Simulation
Play in browser
Penguins snowboarding with powerups
Racing
Play in browser
Just like when we were kids, kind of.
Simulation
Play in browser
Watch the natural microscopic life of predators and prey!
Simulation
Play in browser
tasked to destroy rifts to the void, your sight might deceive you.
Puzzle
Play in browser
Use arrows or wasd to move. Dodge obstacles that appear randomly while falling. Use space to slow down time
Action
An arena fighter about balancing a scale in spite of hordes of slimes. Made in 13 days for the 2025 Gamedev.js game jam.
Fighting
Play in browser
A philosophical platformer about stubbing your toe and the meaning of life.
Platformer
Play in browser
A short game where you use shadows to get around.
Platformer
Play in browser
Maneuver the star fighter and defend the galaxy from the surrounding aliens in a four-way action!
Shooter
Short, spine-chilling horror game set in a creepy old house. Find and collect all the hidden items before it's too late.
Adventure
Be a hero and save humanity from the space alien invasion on Earth, specifically in Stuckholmes City.
Shooter
A fast-paced 2-player battle game where you fight , dodge attacks, and outsmart your opponent to win!
Kill, rob, or just do some driveby that's your choice!
Action