Falling Sand Spellcraft Game Builder

One fireball drops into an oil reservoir and chain-reacts through the whole cave: lava floods, gunpowder blows, ice shatters, steam rolls through the dark. Claude Code builds a complete falling-sand spellcraft roguelite in one HTML file: 320x180 cell simulation, 18 materials, a 4-slot wand with 12 spells and modifiers, 4 depths, 6 enemies, a stone colossus boss made of real cells, sandbox mode, synth music and 30 sounds. No installs, no assets. 5 variables re-skin it.