Harbor Skirmish by @OpenDesignHQ
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Shooter, Action · GPT-6 Astra

Harbor Skirmish

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Works on phones and computers

Rabbits have invaded Seabreeze, a small harbor town, and you hold them off in waves with first-person ink weapons: a rifle, a scattergun and a paper blade. You can double jump, dash and slide through the streets, or hold E to swing on a grappling hook up to the rooftops. Each wave shows how many rabbits remain, and your score climbs as you clear them. Works on phones and computers.

How the creator made it

OpenDesign gave GPT-6 Astra a brief for a playable island game with movement and wave combat. The team says it built this version in Three.js and gave DeepSeek V4.1 Flash the same task to compare the results.

From their post on X ↗ and 2 pages on open-design.ai (1 ↗ 2 ↗).

The game belongs to @OpenDesignHQ. Preview recorded by us. Made this game? Here's how we list it.