This main game, originally released in 1996, is a 3D platform adventure where you enter the dream world of Nightopia as the character Nights to help teenagers Elliot and Claris stop the evil Wizeman. The core gameplay loop involves high-speed aerial navigation through timed levels, requiring players to accumulate a specific score threshold to progress. Its distinctive feature is the focus on flight mechanics within a surreal, dream-like setting.

This version of Nights Into Dreams is a port of the Saturn version with identical gameplay, but also incorporates the levels included in Christmas Nights into Dreams as a bonus. It also contains the feature from that version where the characters wearing special seasonal clothing during certain holidays. The game offers two graphics modes: a remake mode with updated graphics and a classic SEGA Saturn graphics mode.

R-Zone port of Nights into Dreams.

The LCD version of NiGHTS into Dreams is a handheld game created by Tiger Electronics and released as part of their "Premiere" series of LCD handhelds. It is based on the Sega Saturn game, NiGHTS into Dreams. It was released in 1997. A presumably identical Pocket Arcade version was also released.