lotus@kshetri:~$ ./doom.exe

DOOM (1993)

The original shareware release — Episode 1, Knee-Deep in the Dead — running on an emulated DOS PC inside this page. Nothing is installed, and nothing loads until you press start.

 ____   ___   ___  __  __
|  _ \ / _ \ / _ \|  \/  |
| | | | | | | | | | |\/| |
| |_| | |_| | |_| | |  | |
|____/ \___/ \___/|_|  |_|

Downloads about 4 MB on first run. Mind your data if you are on mobile.

Controls

↑ ↓ ← →: Move and turn
Ctrl: Fire
Space: Open doors, use switches
Shift: Run
Alt + ← →: Strafe
1 – 7: Switch weapon
Tab: Automap
Esc: Menu

Click the game to give it your keyboard; click outside it to get the keyboard back. Fullscreen, sound and save states live in the emulator's own sidebar.

You are on a touch device. On-screen controls are provided, but DOOM was built around a keyboard — it plays far better on a desktop.

About this build

DOOM is © 1993 id Software. This is the shareware episode, which id released for free redistribution — not the commercial game. It is served here unmodified and unaltered, with no charge and no advertising, as those terms require. Episodes 2 to 4 are not included; if you enjoy this, the full game is worth buying.

Emulated by js-dos v8 (DOSBox). js-dos is GPL-2.0 licensed and builds on DOSBox. Pressing start fetches the emulator runtime from v8.js-dos.com; the game data itself is served from this site.

Full provenance, the exact bundle contents and rebuild instructions are in doom/README.md.