[The Fifth Man]

Sam & Max Hit The Road is funny as hell. It comes on the demo cd for Armed and Dangerous, also by LucasArts.

There's some other graphical adventure games that are cool. If you're really into them, you HAVE to check out the Myst series (Myst, Riven, Exile...), 'course you have to have the patience of Job to make any progress in them. Frankenstein: Through the Eyes of the Monster is cool, too (it's got Tim Curry!). And good luck finding Day of the Tentacle. Or The Dig.

Dungeon Keeper is the shit.