UP! with a stranger
Climb from a backyard to space as two blobs tied together by a string.
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About the game
Climb with a friend, or get paired with a stranger who is given a name as silly as Cheeky Blob. Each of you controls one blob. A sign warns you to go up together or die.
The string tying you together, and the one rule that it must not break. A climb from your backyard up toward space and beyond. Your goal of seeing how high the pair of you can get.
ilyxxxa comes from an art director background. They describe it as the offspring of Purple & Brown, It Takes Two and Flappy Bird, and call it dumb by design. They also pitch it as the first co-op game for strangers. It's the first game they've shipped, and by their account it is 99% vibe coded. They had wanted to make a game their whole life. Part of the point was to test whether AI-made work could read as handmade.
Something wrong with this game?
You can also email us at hello@gamesbyai.win and tell us what you found.
How it was made
Source: Vibe Jam 2026 submission form. Evidence: the creator's own account.
- Added
- Code by AI
- Most of it
- AI provider
Anthropic
- AI tools
- Claude Code
- Engine
- Three.js
- Players
- Online multiplayer
- Jam
- 2026 Vibe Coding Game Jam, rank 27 of 945

Screenshots
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Questions
Can I play UP! with a stranger with friends?
Yes. It has online multiplayer, so friends can join from their own computer or phone without being in the same room.
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