Thornlight

Pilot a sub, gather light, and build a glowing mosaic before the thorns reach it

Resource Management Game of the Day
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Released: Thursday, February 26, 2026 Genre: Resource Management Controls: Move with WASD, arrow keys, or touch; press 1-4 or tap buttons to pick a tile, then click a grid cell to place it Platform: Browser (desktop & mobile)

About this game

Thornlight is a real-time survival game where you steer a glowing submarine to collect sparks, shards, and pearls, then spend them crafting tiles onto a 5x5 grid. Complete rows, columns, and the full mosaic for big bonuses while creeping thorn vines hunt your tiles each wave. Place Ward tiles to repel the thorns and survive as the waves grow harder.

How to play

Move with WASD, arrow keys, or touch; press 1-4 or tap buttons to pick a tile, then click a grid cell to place it Thornlight runs entirely in your browser — no download or sign-up. Press play above, or open it fullscreen for the best experience on phone or desktop.

survival gameresource managementbuild a mosaictile placementwave defensesubmarine gamecollect and craftneon underwatergrid buildingtower defense lite

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Thornlight is part of GameDaily.ai — a brand-new AI-generated browser game published every single day since Thursday, February 12, 2026. See how the games are made or browse the full archive of 464 games.