Back to the arcade

id Software · 2004

Doom 3

Return to the UAC base on Mars in the original Doom 3.

Welcome to Mars City

Play the full original Doom 3, running here in your browser.

Game assets load as needed. Phones use a lighter graphics preset; iPhone reliability is being tested.

The full game is about 1.6 GB. Only the assets needed for your session are fetched from this site.

The download starts only when you press Play. Keep this tab open while the game loads.

Press Play to begin.

Doom 3
Press Play to start.

Controls & saves

Desktop: click the game to capture your mouse. WASD moves, mouse aims, click fires, Space jumps, R reloads, F switches to the flashlight, Ctrl crouches. Home opens the menu; Esc releases the mouse.

Touch: slide your thumb around the walk pad to move and change direction. Drag the look pad to aim or move the menu cursor, and tap Fire / select or another action with your other thumb. Touch controls are experimental; phone performance has not been tested on a physical device.

Leaving this tab pauses the engine. Return and press Resume to continue. Use the original Save Game menu to save your progress. Game saves are kept on this device when browser storage is available. Clearing site data removes them. Wait for “Game saves kept” before closing. Stop releases the engine and game memory.

Game-menu saves can be kept in this browser.