Let the GEOS games begin!
Vol 1: ShangriLa, Patience, All Cheese, Logitron
Vol 2: Pipes, Black & White, Solitaire, Mastermind
Vol 3: Dredge Driver, Break thru, Quartus, Missile Defense
These were published in 1991 are either strategy or puzzle games for GEOS 1.2 for C64 or C128 (not sure if they work in 128 mode... will soon find out).