Download DeadEnd:

DeadEnd 2.0 for Macintosh	314 KB	DeadEnd for Macintosh. Runs on almost every Macintosh out there - from a Mac Plus up to a current PowerMac G4.
DeadEnd 1.0.1 for DOS	82 KB	DeadEnd for MS-DOS. Only 16 colors and PC speaker sounds, but it is still DeadEnd.