Free games released in 1985
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Ultima 4: Quest of the Avatar
RPG / old school RPG
Origin Systems
1985 
Beyond Castle Wolfenstein
shooter / maze
Muse Software
1985 
Strip Poker: a Sizzling Game of Chance
card game / strip poker
Artworx Software
1985NSFW 
Star Fleet I: The War Begins
strategy / space combat
Interstel
1985 
Telengard
RPG / old school RPG
Avalon Hill
1985