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2017AdventureCasualMassively Multiplayer
Free MMO Games on Steam
Free-to-play games solve the hardest problem in comparing libraries: what to do when your group owns nothing in common. Everyone can install these today, so a missing friend is never a blocker. These are the mmo games on Steam that cost nothing up front.
For what to check before committing to one of these, see the full MMO guide.
16 games
Ranked by how often each game appears in the libraries compared here.
1 2 
War Thunder812013ActionMassively MultiplayerSimulation3 
Path of Exile862013ActionAdventureIndie4 
PlanetSide 2842012ActionMassively MultiplayerFree To Play5 
Trove2015ActionAdventureCasual6 
Lost Ark2022ActionAdventureMassively Multiplayer7 
Realm of the Mad God Exalt822012ActionAdventureIndie8 
APB Reloaded2011ActionMassively MultiplayerFree To Play9 
World of Warships812017ActionMassively MultiplayerSimulation10 
Delta Force2024ActionAdventureMassively Multiplayer11 
RuneScape ®2020Massively MultiplayerRPGFree To Play12 
Throne and Liberty2024ActionAdventureMassively Multiplayer13 
Star Trek Online662012Massively MultiplayerRPGFree To Play14 
8BitMMO2015ActionAdventureFree To Play15 
RIFT842011ActionAdventureMassively Multiplayer16 
Infestation: The New BeginningActionIndieMassively Multiplayer
Which of these does your group already own?
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