SimAnt: The Electronic Ant Colony is a simulation game inspired by ants and the ways of their life, created and published by Maxis. Released back in 1991 for the PC, it lets the player take control and run an entire colony of ants.
SimEarth: The Living Planet is a life simulation game created by Will Wright and published by Maxis Software for DOS, Amiga, Macintosh and other platforms in 1990, one year later the success of Sim City.
Little Computer People is an incredibly advanced life simulation game created in 1985 by Activision for the Commodore 64, ZX Spectrum, Atari ST and Apple II. An Amiga version was released in 1987.