Quake II RTX is fully ray-traced and includes the 3 levels from the original shareware distribution.

Quake II RTX builds on the work of Christoph Schied and the team at the Karlsruhe Institute of Technology, who added ray tracing to Quake II to create Q2VKPT (in turn building upon the Q2PRO code base). NVIDIA has introduced new path-traced visual effects, has improved texturing, and has made dozens of other changes and improvements, resulting in an experience that rivals games created today, and pushes your RTX hardware to the limit.