RealRTCW (HD mod for Return to Castle Wolfenstein game) is available for NixOS!

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It takes some time to setup, but the benefit is great

  1. Obtain Return to Castle Wolfenstein game

  2. Download realrtcw mod data either from Downloads - RealRTCW mod for Return To Castle Wolfenstein - Mod DB or Site Error

  3. Install NUR https://github.com/nix-community/NUR/

  4. Install realrtcw engine from NUR: nix-env -f '<nixpkgs>' -iA nur.repos.gnidorah.realrtcw

  5. Copy files from realrtcw mod data folder over rtcw game folder or use overlayfs: sudo mount -t overlay overlay -o lowerdir=$HOME/.steam/steam/steamapps/common/Return\ to\ Castle\ Wolfenstein/Main,upperdir=$HOME/.steam/steam/steamapps/common/RealRTCW/Main,workdir=$HOME/.realrtcw/workdir $HOME/.realrtcw/main

  6. Run game: RealRTCW.x86_64

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