Nitemare 3D is a horror-themed first-person shooter released by Gray Design Associates in 1994 for MS-DOS and Windows 3.x. There are three episodes with the first episode released as shareware and ten levels in each. The full release came on two 3½" floppy disks with a guide to the game's thirty levels. According to author David P. Gray, the game is the first pixelated Windows game to use the WinG interface. Along with WinDoom also from 1994, a similar first-person shooter, Bad Toys, was released for Windows 3.1 in 1995.