Fallout is one of the greatest RPG games out there. It's set in the post-nuclear, dangerous world of violence and radiation. The game consists of a very detailed and interesting storyline, tactical turn-based combat, and revolutionary character creation style. You can play Fallout for months, but still it's not boring because of many ways of finishing the game. You can be a bad-ass gangster, or a world-saving hero. This is a must-see for all RPG games fans, and it's undoubtedly one of the best gaming classics. Unique, amazing storyline makes Fallout addicting!
The Linux copy uses the classic DOS version.
Fallout does everything needed in a good RPG and it does it extremely well. Character creation and development is very good with many different skills to develop and feats to choose from to customise your character to suit your playing style. The turn-based combat is of just the right level of difficulty to be highly rewarding when you win a difficult battle without being so extremely difficult that you give up. You are free to travel anywhere in the world at an early stage and the game lets you do pretty much anything you want. You can play as a saintly character, an evil character or anything in between. The choices you make make a real difference to how the story develops and consequently there are multiple endings. This is at least one of the top five RPG's I've ever played (Fallout 2 and Planescape Torment come to mind as holding two of the remaining places on the top 5).