Developer Builds Complete Pixel-Art Roguelike Where Claude Code Generated Every Asset in Code

A solo developer has created a full 2D pixel-art roguelike in which every sprite, animation, cutscene and even the promotional trailer was generated entirely in code by Anthropic's Claude—without a single external image file. The demo, shared in mid-July 2026 by a developer known online as Jpizza99, casts the player as a small slime who hurls knives at ghosts across an increasingly intense top-down world, taking damage and collecting loot along the way.