Lunicus is a 1993 video game developed by Cyberflix and published by Paramount Interactive. It shares many traits in both graphical style and gameplay with some of Cyberflix's other games, like Jump Raven. It was rated as 1993 CD-ROM game of the year in the magazine MacWorld.

It was released for the Mac and Windows 3.1, and was one of many adventure games released to capitalize on the adoption of CD-ROM drives.

Lunicus is primarily an adventure game; in between combat missions players may wander the Moon base they are stationed on and talk to the various non-player characters contained within, with full voice acting and some stilted animation which is characterized on the game packaging as "Talking Cyber Puppets".

During the combat missions, the player enters various parts of Earth and cleans out alien infestations either on foot or in a vehicle. The player's weapons are relatively static throughout the game, including machine guns, rocket launchers, and grenade attacks. While in the vehicle, the player can opt to duck inside one of the buildings to find additional ammunition and supplies. Nearly all buildings (except for quest-specific ones) are identical.

The game's latter missions involve defending the Moon base from attack by the alien forces, and attacking the alien mothership.

The player's activities are seen from a first person perspective, but they can only face one of four directions, turning left or right on a tile-based grid similar to games such as Scarab of Ra. Direct targeting is accomplished with the mouse, while movement is accomplished with either the mouse or the game's heads up display.

The game includes several pre-rendered full motion video sequences, usually bookending the combat sequences. Several difficulty levels are available, which alter the strength and numbers of the enemy waves.

Nearly all graphics in the game are pre-rendered sprites, including walls and city components.