Waterpark Rumble
Release year: 2026
Team size:
· jam version: made alone
· full version: 6 people
Game engine: Roblox
Language: English
The British development studio Koffeecup organized an internal game jam called Koffeejam 2026. I created a game on Roblox single-handedly as part of the event.
Winner of the “Gameplay” award, my game Waterpark Rumble was the only entry selected to become a commercial product for Koffeecup.
My prototype was so well received that it prompted the studio to invest in it. Koffeecup wanted to develop and publish a more polished version. A few months later, a second version of the game was created, this time by a team.
Both versions of the game are available for free on Roblox.
🏅 Be the last player left on the platform
💢 Bump into your opponents to push them into the pool
💥 Charge up your power to push them even further! (hold down E on the jam version, hold down left-click on the full version)
🦩 Unlock new floaties, hatch eggs, and collect pets with unique powers
What I did
Game design
Design of the game system
Design of progression features, with multiple short and long term objectives so players unlock new content regularly
Balancing (combat, rewards, prices, unlocks, difficulty, …)
Organize playtests, adjust the gameplay loop and the balancing accordingly
Take the platform into account,
adding typical Roblox content (brainrot, memes, etc.)
Development
- Develop all the game features
- Setup a MCP server linking Claude AI to Roblox to speed up development
Useful links
Available on:
desktop_windows PCmobile_2 Mobiledeployed_code UGC
Supported operating systems: Windows, MacOS, Android, iOS
Requires a Roblox account (free)
Available on:
desktop_windows PCdeployed_code UGC
Supported operating systems: Windows, MacOS
Requires a Roblox account (free)