Dungeon of Doom

A procedurally generated dungeon, twenty-one kinds of monster, permadeath, and the Amulet of Yendor waiting on depth eight. No build step, no dependencies, no assets — one HTML file you can open from a thumb drive.

Runs are tuned for fifteen to twenty minutes. Coffee-break length, not campaign length.

Controls

• Arrow keys or h j k l — move
• y u b n (or numpad 1–9) — move diagonally
• . — wait a turn, > — descend stairs
• q — quaff a healing potion, r — read a teleport scroll
• T — cycle theme: colour, green phosphor, amber phosphor
• C — toggle CRT glow, scanlines and vignette
• M — mute, ? — help

Walk into a monster to attack it. Some are fast; some strike from range.

What's in it

• Torchlit field of view via recursive shadowcasting, and monsters that pathfind around corners toward you.
• A full progression ladder: XP and levels, weapons and armour, potions (heal, strength, life), scrolls (teleport, magic mapping), treasure vaults, and a boss.
• Meta-progression. Every run earns Soul Shards, win or lose. Spend them in the Soul Forge on eight permanent upgrades, so a bad run still moves you forward.
• High scores and records persist between sessions.

The single-file constraint

Everything — map generation, field of view, combat, the sound synth, the CRT shader-ish effects — lives in one HTML file with zero dependencies. It's a real design constraint rather than a gimmick: it forces the whole game to stay small enough to read, and it means the thing still runs in ten years.