RealRTCW

May 8, 2026 · View on GitHub

RealRTCW is a community-driven single-player overhaul for Return to Castle Wolfenstein, built on top of the original iortcw and rtcw-sp source code.

The project focuses on modernizing the engine, expanding gameplay systems, and improving overall stability and quality of life—while staying true to the original RTCW experience.

✨ Features

Engine & Platform

  • Full iortcw feature set, including proper widescreen support
  • SDL3 backend
  • Steam integration via Steamshim (by Ryan C. Gordon)
  • Steam Achievements and Steam Stats support
  • Steam Workshop Integration
  • Steam Rich Presence support
  • FFmpeg video playback support
  • Increased engine limits
  • Custom BSPC and BSPCUI tools
  • Foliage rendering system
  • Atmospheric environmental effects
  • Extended scripting functionality
  • Automatic AI attribute system (.aidefaults)
  • Expanded .weap file system

Gameplay & Content

  • Expanded weapon arsenal
  • Survival game mode
  • Restored console ports content and features
  • Modular HUD system

Usability & Quality of Life

  • Subtitles support
  • Weapon wheel
  • Improved localization system
  • Enhanced controller/gamepad support
  • Aim assist for gamepads
  • .pk3 gating via CVARs
  • Numerous bug fixes and general QoL improvements

📄 Original README

The original id Software README that accompanied the RTCW source release is preserved as README.txt and can be found in the source tree for both the SP and MP codebases.

📦 Availability

🐧 Linux Packages