Return to Castle Wolfenstein is a military- and occult-themed first-person shooter game in a Second World War setting, originally released in 2001. It is a sequel to Wolfenstein 3D. This port contains the iortcw game engines for the single-player campaign and multiplayer, based on ioquake3 and the GPL source releases of RtCW. Return to Castle Wolfenstein requires non-distributable game data files, which you have to install manually (see pkg-message). WWW: https://github.com/iortcw/iortcw