1Up - Desert Island Discs

While not especially RPG related, 1Up has a feature titled Desert Island Discs that asks various staffers and game developers to nominate the one game they'd want to have if they were marooned on a desert island (yes, with a computer and power - just go with it).  Oblivion, HoMM III and NWN get the nod, while BGII and others are in the "almost but just missed out category".  BioWare's Ray Muzyka went with Starcraft:

 It's an unusual choice for me in that I'd normally pick a role-playing game. But StarCraft has a strong campaign editor to make new content (including making either combat-oriented or story-based campaigns), plus you can play both the solid single-player campaign and against the A.I., and -- here's the trick -- you can play on a LAN or WAN (you said no Internet, but didn't mention local or wide area networks...my goal would be to build a WAN -- I'd explain how, but that would be telling -- connecting other folks similarly dropped onto nearby desert islands by other videogame online sites, who are equally eager to play some competitive multiplayer RTS or try out the campaigns I've created to kill time on the long days where there's nothing else to do but collect coconuts and build rafts.

Hmm...can't decide between PS:T and Gothic II+NotR.  Or maybe Ultima VII?  Too hard.