New bundle up, featuring Sierra.
For $1+:
Space Quest® Collection
Phantasmagoria 1-2
Police Quest™ Collection
Shiftlings
For average:
Arcanum: Of Steamworks and Magick Obscura
TimeShift™
Quest for Glory 1-5
Gabriel Knight 1-3
For $15+:
Caesar™ 3 -4
Geometry Wars™ 3: Dimensions Evolved
King's Quest® Collection
Velocity 2X
For $20+:
King's Quest: The Complete Collection