Plot: Amnios is a 1991 video game for the Amiga platform. It is a top-down multi-directional-scrolling shoot 'em up, set on ten planets across ten levels. Wikipedia
Plot: Bill's Tomato Game is a puzzle game for the and Amiga designed by Bill Pullan and published by Psygnosis in 1992. The artwork is by Lee Carus-Westcott and the music by Mike Clarke. A planned Sega Mega Drive port was cancelled, but a prototype cart exists and was released online in 2014. Wikipedia
Plot: The Ashes of Empire is a turn-based strategy game, which appeared in several adaptions as a play-by-mail game or online game. The game starts on an imaginary map with fixed stars. Each player has home planets and has to conquer the universe. Wikipedia
Plot: Barbarian II: The Dungeon of Drax is a video game first published in 1988 for various home computers. It was also released as Axe of Rage in North America. The game is the sequel to Barbarian: The Ultimate Warrior, which was published in 1987. Wikipedia
Plot: Armour-Geddon is a 3D video game developed and published in 1991 by Psygnosis for the Amiga, MS-DOS and Atari ST. There is also a sequel of this game called Armour-Geddon 2: Codename Hellfire available for Amiga. It was published in 1994. Wikipedia
Plot: Atomino is a 1990 puzzle video game originally for the Amiga, Atari ST and MS-DOS. A version was made for the Commodore 64 in 1991. The objective is to build molecules from atoms, with gradually increasing difficulty and speed. Wikipedia