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Haiku Harbour

Haiku Harbour is described as a multiplayer 2.5D browser game set in a cosy seaside town.

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Haiku Harbour — Game page image
Game page image
01 / The project

The project

The post describes hundreds of NPCs sharing the town with real players, but does not provide details about gameplay mechanics or controls.

02 / Where AI comes in

Where AI comes in

Chong-U claims that Claude Haiku 5.5 built the browser town; the post does not explain the development process.

03 / For game makers

For game makers

The stated highlight is a seaside town populated by hundreds of NPCs alongside real players.

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Original X post

Based on the original post. AI production details are the creator's account.