| | Windows · Mac · Multi-player · MMO · Cross-Platform Multiplayer · Steam Achievements
Free to PlaySpaceStrategyMassively MultiplayerSci-fi
In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before.
| | Windows · Multi-player · MMO · Co-op · Steam Achievements · Full controller support · In-App Purchases
Free to PlaySci-fiSpaceMassively MultiplayerRPG
EVE Online is a community-driven spaceship MMO where players can play free, choosing their own path from countless options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox.
PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.
| Windows · Multi-player · MMO · Steam Trading Cards
Free to PlayMassively MultiplayerFPSShooterAction
Dynamic online battles in real time with elements of strategy and cards game. Collect and improve cards of effects, turrets and intergalactic pirates: robots, aliens, monsters, insects and other extraterrestrial creatures.
StrategyFree to PlayMedievalMassively MultiplayerMultiplayer
AirMech® Strike is a fast paced Action-RTS game that can be played online competitively or cooperatively. Earn Kudos and Experience in battle and unlock a wide collection of AirMechs and Units while you practice the perfect strategy to emerge victorious!
Star Conflict is an action-packed, massively multiplayer space simulation game that puts players in the role of elite pilots engaging in a widespread interplanetary skirmish. The whole world for PVP and PVE!
| | | | Windows · Mac · Linux · Multi-player · MMO · Co-op · Steam Achievements · Steam Trading Cards · VR Support · Partial Controller Support
Free to PlaySpaceActionMultiplayerSci-fi
Strife® is a truly free to play, competitive, online ARTS / MOBA that features non-stop action and engaging combat. Take control of powerful and versatile heroes, each capable of dominating in unique ways, and exert your will in an epic battle between two teams.
| | | | Windows · Mac · Linux · Single-player · Multi-player · Co-op · Steam Achievements · Steam Trading Cards · Stats
Free to PlayMOBAMultiplayerActionStrategy
Kingdom Wars is a free to play 3D MMORTS with real-time siege combat, without the pay to win element so common in the genre. Kingdom Wars offers beautiful 3D online world, where players construct strongholds, direct citizens, complete quests and eventually manage a global empire.
Prime World is a free online game in RPG / MOBA genre with a unique universe where tactical session battles, castle management, and hero development are mixed together. Gather your collection of talents, build an army of invincible heroes and become the champion!
Free to PlayMOBAStrategyMultiplayerMassively Multiplayer
Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 5, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses.
Free to PlayTower DefenseMultiplayerStrategyAction
NASA has once again landed on the lunar surface with the goal of colonization, research, and further exploration. Shortly after the return to the Moon, NASA has established a small outpost on the south pole of the moon called Moonbase Alpha.
| | | Windows · Mac · Linux · Single-player · Multi-player · Online Multi-Player · MMO · Online Co-op · Cross-Platform Multiplayer · Steam Trading Cards · In-App Purchases · Partial Controller Support
Free to PlayActionMultiplayer2DMassively Multiplayer
Orcs Must Die! Unchained takes the award-winning Orcs Must Die! action tower defense game to a whole new level with team-based gameplay! Bust skulls with your best pals in PvE co-op Survival, or put your teamwork to the real test in Sabotage Mode!
| Windows · Single-player · Co-op · Steam Achievements · In-App Purchases · Partial Controller Support
Free to PlayMultiplayerTower DefenseCo-opAction
Battle for the Galaxy is a freemium cross-platform MMO strategy video game. Battle for the Galaxy features player controlled development of the space outpost, further defending that outpost from other players, as well as attacking outposts of other players.
| | | Windows · Mac · Online Multi-Player · MMO · Online Co-op · Cross-Platform Multiplayer · Steam Achievements · Full controller support · In-App Purchases
Massively MultiplayerFree to PlayIndieActionSpace
Transformice is an MMO platformer about dozens of mice running to bring back the cheese! Will the almighty Shaman help you or just ruin everything? Millions of levels, hectic physics, skill trees, and more importantly... hats!
| | | Windows · Mac · Multi-player · MMO · Steam Achievements · Steam Trading Cards · Includes level editor
Free to PlayMultiplayerMassively MultiplayerFunnyPlatformer
"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...
| | Windows · Mac · Multi-player · Online Multi-Player · Cross-Platform Multiplayer · Steam Achievements · In-App Purchases
Free to PlaySpaceBuildingMultiplayerMassively Multiplayer
Teeworlds is a free online multiplayer game, available for all major operating systems. Battle with up to 16 players in a variety of game modes, including Team Deathmatch and Capture The Flag. You can even design your own maps!
| Windows · Single-player · Multi-player · Co-op · Steam Trading Cards · In-App Purchases · Partial Controller Support
Free to PlayActionCo-opMultiplayerThird-Person Shooter
Experience epic, free-to-play naval combat when you helm one of over 200 historic vessels in an exciting balance of strategy and real-time combat in World of Warships. Outfit your fleet with flags, camouflage, modifications, talented commanders, and more!
Freestyle 2: Street Basketball is a fast paced online arcade basketball game. Create your own unique player and compete in the online street league! Use variety of b-ball moves and customize your player! Team up with the best street ballers online and rise to the top!