Dr. Brain Dr. Brain is a series of educational games made by Sierra On-Line in the 1990s . The aim of each game is to solve a series of puzzles in order to proceed further into the game . The series was later picked up by Knowledge Adventure who turned it into a more action-oriented game . The original two games were created by an in-house team at Sierra . After the second game was released , Sierra acquired another company , Bright Star Technology , known for its educational games . The series was turned over to a Bright Star team , explaining the change in direction from the second game to the third . Dr. Brain is a somewhat scatterbrained scientist in old age . He may be described as a mad scientist stereotype , but without the malevolence . Dr. Brain was 're incarnated ' as Dr. Cranium in Quest for Glory IV ( both Dr. Brain and Quest for Glory series are designed by Corey Cole , though Dr. Cranium mentions once that one of his descendants would get `` his very own game '' . ) . Sierra Games Castle of Dr. Brain ( 1991 ) - The first game placed the player trying to solve puzzles relating to Logic and Math in order to win a job at Dr. Brain 's Castle . The Island of Dr. Brain ( 1992 ) - The second hosts a variety of problems , including language , math , and art , to restore power on Dr. Brain 's Island . The Lost Mind of Dr. Brain ( 1995 ) - The third game abandons the adventure game theme of the first two , and is more of a straight puzzle game . For example , there are only eleven puzzles , most must be repeated many times , and the player can switch between puzzles at any time ; all of these contrast with the original games . The puzzles are based on the theory of multiple intelligences , and the player must restore Dr. Brain 's mind with the help of his niece Elena and his lab rat , Rathbone , who has gained all of the Doctor 's knowledge . The Time Warp of Dr. Brain ( 1996 ) - The fourth and final Sierra game places players with puzzles similar to Lost Mind , trying to bring Dr. Brain out of a time loop . Other Sequels Knowledge Adventure later released three games based on the original series : IQ Adventure - The first game is a third-person adventure where the player has to find and use objects to restore a trans-dimensional device that has trapped him in a strange dimension . Dr. Brain Thinking Games : Puzzle Madness ( 1998 ) or Puzzleopolis - The second game turns Dr. Brain into a brain sitting in a jar , and casts the player as Dr. Brain 's clone , Pro , fighting against the evil Con . The player plays mini-games which are logic orientated to gain devices to duel Con and his flunkies with . Action Reaction - The final game is played in a first-person perspective , and the player and Dr. Brain have kidnapped by S.P.O.R.E , an evil organization bent on world domination . Using the three laws of physics , switch flipping , rocket turrets , and the `` helping hand '' to knock out guards , the player battles through 45 levels to capture the evil Dr. Craven . The new series recast Dr. Brain as a twenty-something genius instead of an old mad scientist . In the newer games , there are generally less education-oriented and more problem-solving puzzles , although most are third or first person games involving throwing switches and stunning guards ( IQ Adventure and Action Reaction ) . Categories : Sierra games 