Source portDemo included

Return to Castle Wolfenstein

Gray Matter Interactive · 2001 · PC · Shooter

Opens wwasm.m-h.org.uk in a new tab. A demo plays right away. For the full game, bring your pk3 files from a full copy of the game.

About

Built on iortcw, the GPL release of the engine behind Return to Castle Wolfenstein, compiled to WebAssembly. The official demo downloads and plays on its own; bring your own pk3 files for the campaign.

Return to Castle Wolfenstein is a first-person shooter and a reboot of Wolfenstein 3D. The player's arsenal includes among others a Luger, MP 40 submachine gun, Mauser rifle with sniper scope, flamethrower, dynamite and grenades. The game also features a multiplayer component in which players are split into Axis and Allies sides with each a set of objectives to complete.

Description from IGDB.

How it runs

Project: WwasmSource port. The studio released the code; this port carries it to the browser.License: GPL-3.0
Port: wwasm.m-h.org.ukBy Gregory Maynard-Hoare · WebAssemblyOnline since May 20, 2025
Plays with: Keyboard and mouse.
You need: A demo plays right away. For the full game, bring your pk3 files from a full copy of the game.
Original: Gray Matter Interactive, 2001, PC

Other ways to play

rtcw.pieter.com
By Pieter Levels (@levelsio)
Play
Source portPlays instantly
iortcw in the browser, multiplayer only on mp_beach. Nothing to bring; pick a name and join the match.