February 14 — DMA Design releases Lemmings, a puzzle game that requires the player to lead a group of lemmings through a dangerous environment to an escape portal.
February 6 — Capcom releases Street Fighter II for arcades. It becomes highly successful and is routinely listed as the grandfather of the fighting game genre. It is also credited with revitalizing the arcade game industry at the time, and popularizing direct tournament-level competition between players.
May 6 — Sierra On-Line releases The Sierra Network, which is also credited as the first graphical MMORPG (due to its inclusion of The Shadow of Yserbius), TSN would later become its more memorable name, ImagiNation Network, after a total buyout from AT&T in 1994.