Among PC role-players are Planescape: Torment of 1999, considered one of the bravest and best games of its kind. Much later came the game even to the Mac via GOG.com. A proper sequel to the Dungeons & Dragons-reeking jewel did not materialize, but the spiritual successor Torment: Tides of Numenera released actually now in days.
The game stays close to the original roots, which also applies to quality. We have a review going on, but can already confirm that Tides of Numenera is a really good game that you really should not miss. The game is developed by inXile Entertainment and had its beginnings as a Kickstarter project, which runs managed to scrape together the entire $ 4,000,000.