- Export saves: export the savegame files from your browser, so you can switch to another browser or computer. You can also use them in an emulator installed on your computer.
- Import saves: import savegames that you exported before with the Export saves button.
- Download disk: export the whole game from your browser, with all your savegames. Useful to switch to an emulator installed on your computer.
- Reset game files: if you somehow messed up the game files, you can reset them to an exact copy of the original.
- Reset saves: delete all savegames from your browser. We recommend that you export them first: there is no turning back!
Castle of Dr. Brain - Play Online
For small DOS games like Castle of Dr. Brain, you can play online immediately with your browser (Chrome, Firefox, Safari, Edge, Opera...). This feature is experimental, the game may not work properly.
Warning: game save should work, but you should try it early! Also, be careful to select the right game executable in the list above.

Comments and reviews
tried the codes under novice level - discovered that the female/venus (circle with cross underneath) symbol in tennis is actual the earth symbol (cross inside circle). Thanks to Jackironsides for posting the codes -can't beat the game with out them!!
Without the manual, you can't get through the door in the first hallway. The codes from the manual are:
☿♀︎♇ Backgammon
☿♂︎♅ Baseball
☿♃☿ Basketball
☿♆♁ Billiards
☿♇♅ Blackjack
♀︎♀︎♇ Bowling
♀︎♂︎♅ Bridge
♀︎♃☿ Checkers
♀︎♆♁ Chess
♀︎♇♅ Cribbage
♁♀︎♇ Dominos
♁♂︎♅ Football
♁♃☿ Golf
♁♆♁ Hearts
♁♇♅ Hockey
♃♀︎♇ Horseshoes
♃♂︎♅ Jacks
♃♃☿ Jigsaw
♃♆♁ Poker
♃♇♅ Pool
♅♀︎♇ Puzzle
♅♂︎♅ Soccer
♅♃☿ Spades
♅♆♁ Tennis
♅♇♅ TicTacToe
this game sucks the code is stupid
No comment nor review for this game at the moment.