# DOOM (1993 Shareware) | Browser Port Technical Specification
> id Software's groundbreaking first-person shooter running in high-speed WebAssembly.
- **Canonical URL:** https://portedtobrowser.com/games/doom-1993-web
- **Direct Launch URL:** https://silentspacemarine.com/
- **Original Platform:** MS-DOS (1993)
- **Port Architecture:** Source Engine Port (PrBoom / Chocolate DOOM (WASM))
- **Asset Requirement:** Instant Play
- **Download Footprint:** 15 MB
- **Save Mechanism:** Browser LocalStorage/IndexedDB
- **Ported By:** id Software / Web Preservation
## Overview
Experience the game that defined the FPS genre. This web compilation of classic DOOM runs through an optimized WebAssembly port of chocolate-doom and prboom, executing the original game logic faithfully at ultra-low latency.
## Controls Guide
- WASD to move
- Left-Click to Shoot
- 1-7 for Weapons
- Space to Open Doors
- Shift to Run
- Mouse Look enabled.
## Legal & Preservation Notice
DOOM is a trademark of id Software / ZeniMax Media. Shareware WAD included. Retail levels require user-supplied DOOM.WAD.