Wikipedia
ResidualVM (formerly Residual) is a cross-platform computer program comprising 3D game engine recreations with a common graphical user interface. It supports Grim Fandango and Myst III: Exile.
ResidualVM was originally designed to play LucasArts adventure games that use the GrimE game engine. On May 26, 2009, ResidualVM was adapted so that it could support multiple engines. The Sprint engine from Presto Studios is now recreated in ResidualVM as well. Various other engines are in preliminary stages, but have not yet been added to the main branch. Like its sister project, the 2D adventure game interpreter ScummVM, the VM in ResidualVM stands for virtual machine.
ResidualVM is a reimplementation of the part of the software used to interpret the scripting languages by conducting reverse engineering on the original game rather than emulating the hardware the games ran on. As such, ResidualVM allows the games it supports to be played on platforms other than those for which they were originally released.