D2X-XL is an improved and modernized version of the classic 3D shooters Descent 1 and Descent 2.
It uses OpenGL and offers many improvements over the original games, like high-resolution textures, models, sounds and music, effects like smoke, lightning, and glow, multiplayer online matchmaking and gaming via the internet, bigger and better levels, and stereoscopic rendering including Oculus Rift support.
It allows you to play both Descent 1 and Descent 2 with a single program, using appropriate game elements and behaviour for each of the titles. Despite its enhancements, it is 100% faithful to the original games, allowing you to turn off all extras and play Descent 1 and 2 just the way they looked back in the day when they were new.
Due to its many enhancements, D2X-XL offers a significantly enhanced single player experience as well as improved and expanded multiplayer capabilities.