While the base RTX download is free, you must own the original Quake II on GOG to play the full campaign and multiplayer. Quake II RTX on GOG.com
Real-time reflections on weapons and metallic surfaces, plus support for multiple recursive reflections in mirrors. Quake II RTX-GOG
Reworked textures for water and glass that accurately refract light and show volumetric shadows. While the base RTX download is free, you
Updated high-resolution weapon models and environmental textures. 📦 Unlocking the Full Game on GOG Quake II RTX-GOG