Voodoo Castle is a text adventure game initially published by TRS-80 Software Exchange for the TRS-80 in 1979. Adventure International soon after released versions for numerous computer systems of the era including re-releases for the TRS-80 and versions for the TI-99/4A, Commodore VIC-20, Apple II, Atari Home Computers, and other systems. It is Adventure #4 in the Scott Adams Adventure series and features a similar interface and text parser as other games in the series.
Count Cristo has had a voodoo curse put on him and players have the goal of reversing the curse. The game takes place in his castle where the recipe and materials necessary to help Count Cristo are located. Similar to other Scott Adams adventure games, Voodoo Castle features a simple text parser to interact with the game. Players are provided with a split screen; the top provides a brief description of the current location or situation along with notable items that are visible while the bottom of the screen allows players to enter two word commands consisting of a verb and noun (such as READ SIGN) and provides the results of commands. The game allows progress to be saved, and doing so often is advisable; it's possible for players to die in many ways or to become stuck in an unwinnable situation.