Endless Space Alternatives

Sins of a Solar Empire is an Adventure, Strategy, Real-time-strategy, Science-fiction, Exploration, Aliens, Single and Multiplayer Space Simulation developed by Ironclad Games and published by Stardock.

Stellaris is an Adventure-based, RTS (Real-time Strategy) Space, Sandbox, Sci-Fi, Single and Multiplayer video game created and published by Paradox Interactive.

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FreeOrion is a turn-based space empire and galactic conquest (4X) computer game being designed and...

Galactic Civilizations is a Turn-based Strategy, Sci-Fi and Single-player video game developed by Stardock and published by Strategy First.

Star Ruler is an Action-Adventure, Science-fiction, Real-time Strategy, Space, Strategy, Single and Multiplayer video game developed by Blind Mind Studios and published by IGS.

Epic 4X game of interstellar exploration and conquest.

Homeworld is an Action-Adventure, Science-fiction, Real-time Strategy, Real-time-tactical, Single and Multiplayer Space Simulation created by Relic Entertainment and published by Sierra Entertainment.

The award-winning 4X game of space conquest.

Player-created empires, player-driven markets, and endless ways to embark on your personal sci-fi adventure.

Browser-based, sci-fi space RTS game.

Homeworld 2 Complex (simply called Complex mod) is a mod based on the Homeworld2 game engine...

Star Trek Online (STO) is a free to play MMORPG that takes place inside the Star Trek world.

X Rebirth is an Action-Adventure, Sci-fi, Open World, Sandbox, Trading, Strategy, Space and Single player Simulation created and developed by Egosoft.