43		The Lost Mind of Dr. Brain (Windows, 1995)
43		The Time Warp of Dr. Brain (Windows, 1996)
40		Gertrude's Puzzles (DOS, 1984)
40		Gertrude's Secrets (DOS, 1984)

Notes: Games similar to Dr. Brain Thinking Games: Puzzle Madness, Games like Dr. Brain Thinking Games: Puzzle Madness, Knowledge Adventure, Inc., Knowledge Adventure, Inc., Windows, Educational, Puzzle, Math, Logic, Top-down, PC, Game Similarities.