Best Imperium Galactica II Alliances Alternatives & Competitors in 2025

Browser-based, sci-fi space RTS game.

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.

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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.

Science fiction themed real-time tactics game focused on tactics and ship management instead of resource collection and base construction.

Haegemonia: Legions of Iron, or Hegemonia: Legions of Iron is a 3D real-time strategy game made by...

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

A stand-alone expansion pack to Legions of Iron, discover new innovations and even more stunning...

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

Endless Space is an Amazing, Strategy, Science-fiction, Turn-based, Space, Futuristic, Exploration, Co-op, Single and Multiplayer Space Simulation created and published by Amplitude Studios.

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

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

Underworld Empire Game Forums.‎Underworld Empire Forums FAQ - ‎General Discussion - ‎Contact Us - Underworld .

Stronghold Crusader is a RTS game from the series from Stronghold.