Monuments of Mars is a third-person puzzle platform video game developed by Scenario Software and published by Apogee Software. The game consists of four 20-level episodes, the first episode being shareware, the rest being commercial software. It is based on the FAST (Fluid Animation Software Technology) CGA game engine from Arctic Adventure and Pharaoh's Tomb, developed by Todd Replogle, and later published by Apogee.The game was discontinued, and was released as freeware on March 20, 2009.