Lemmings is a puzzle platform game originally published for the Amiga in 1991.  The objective is to guide a group of humanonid lemmings through mazes to the exit.   You must dtermine how to assign a limited amount of 8 unique skills to specific lemmings.  These kills allow a lemming to alter the terrain, affect behavior of others, or to clear obsticles.  It was a highly popular game in the early 1990s and came in several sequels and spin-offs.