What the Water Keeps
A slow boat ride by lantern light through eight realms, with nothing to win.
Sandbox · 15 min+ · Free
Portals: Endless Worlds
An endless flight through 450-odd code-drawn worlds, each through a portal.
- SESSION
- 15 min+
- AI ROLE
- AI-built
- MODEL
- No model at runtime
- CONTROLS
- Panel-driven; fly through portals with the movement controls
- INDEXED
- 2026-11-12
- VERIFIED
- 2026-11-12
- MAKER
- Ethan Mollick
OUR TAKE More of an art generator than a game, and the best one of those in a browser.
How to play
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Load it and a world is drawn around you; fly through the portal in front of you to reach the next one.
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Use the side panel to set the pace, the art style, the camera (sweeping or steady), the hour of day and whether a companion flies with you.
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Turn title cards on if you want to know what each world was generated from — books, paintings, places.
Scoring tips
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Set art style to the one you like before you start; the worlds change character completely between styles.
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Steady camera is the calm option, sweeping is the one that looks like the video everyone shared.
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Favourites let you keep a world; without them you will not find it again in 450.
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The source is on GitHub — the agents wrote their own 87,500-word rulebook to build these.
