Wikipedia: 1985 in video gaming - MobyGames: Browse 1985 - The International Arcade Museum: 1985
4-D Warriors
Arcade
1985
Alpha Mission
Archon: The Light And The Dark
Amiga
Ballblazer
Commodore 64
C-So!
Sega SG-1000
Commando
Dig Dug
NES
1985 (orig. 1982)
Finalizer - Super Transformation
Gauntlet
Ghosts 'n Goblins
Girl's Garden
Gradius
Gun.Smoke
Indiana Jones and the Temple of Doom
King's Valley
MSX
Kung Fu
Little Computer People
Mindshadow
Monkey Business
Penguin Wars
Pooyan
Rabbit Pie
Return of the Invaders
Rock n' Bolt
Rush'n Attack
Savage Bees
1985 (orig. 1985)
Sega Ninja
Sega System 1
SonSon
Sorcerer
Pinball
Space Harrier
Space Invaders
Star Force
Star Luster
Super Mario Bros.
Terra Cresta
The Way of the Exploding Fist
Tiger Heli
Warpman
Yie Ar Kung Fu