Dad builds ad-free 3D puzzle game for 5-year-old using Claude Code

FrequentTemporary783 · reddit · 2026-08-20

A developer used Claude Code to build Sundown Valley, a calm 3D puzzle game for his 5-year-old daughter, with no ads, no micro-transactions, no account, no analytics, no streaks, and no time limits. It features real physics puzzles like a balance scale with coins, and provides hints. Currently has one market puzzle, more coming. Open source, contributions welcome.

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