really loved mirrormoon: http://www.mirrormoongame.com/
really loved swords & sworcery: http://www.swordandsworcery.com/
+1 on myst and riven too! loved em back in the cd rom days and just found them for ipad and i’m back in the mix with both.
+1 for simogo as well! year walk and device six were great.
edit: forgot to mention that my most-played laptop game is an emulation my old favorite super nes game, earthbound. highly recommend for anyone into left-field rpgs.