If I'm going to stay there for a long time then I might as well go for a game with randomly generated content and a steep learning curve. Hello Dwarf Fortress!
(But I must be allowed to download the entire DF Wiki beforehand)
Also X3: Terran Conflict. I really don't have the time and patience for it now.
Other than that probably Morrowind, Deus Ex, and my Baldur's Gate 4-in-1 boxset.
Dungeon Keeper 1/Deeper Dungeons (DK Gold disc) (with map editor) Stronghold1/Crusader (with the official map editors) Borderlands If I could/it was preloaded on the PC, Fallout New Vegas+CK
I wouldn't have a console in my luggage to be "lost" with.
no online? hmm I'll throw in some games I've played Even tho I have a ps3 i'll go with xbox cause some of these games are bad ports
1 gta 4 (edition with dlc) 2 fallout new Vegas ultimate edition 3 assassins creed 2 ( with dlc) some games I havn't played but am anxious too play 4 arkham city 5 kingdoms of amaluar reckoning