The site says all the games offered are shareware, freeware, demo versions, or "liberated" (i.e. officially released as freeware after they became commercially

The site says all the games offered are shareware, freeware, demo versions, or "liberated" (i.e. officially released as freeware after they became commercially unviable). Most of the currently listed games are shareware from id Software or Apogee (or both), and I recall hearing about Command & Conquer being released as freeware at one point, but I'm surprised to see Dune II and The Black Cauldron on that list — I feel like I would have heard about Dune II being released, and I can't imagine The Mouse giving up any control over intellectual property, even something as mostly-forgotten as The Black Cauldron.