I currently have three games which, based on Abandoina's oldwarez list and the forum's Requested Games thread, qualify as abandonware:
SimIsle (ISO, 265MB; Contains Macintosh, Windows, and MS-DOS versions)
The Island of Dr. Brain (ISO, 21.6MB; Features full voice-overs for Dr. Brain)
SimTower (ISO, 164MB)
I would offer my ISO for
The Lost Mind of Dr. Brain, but according to
this, the game is not abandonware until next year due to ESA protection.