Top similar games like AQ2: Expanse:

Command 25 ship variants with 20+ upgrades in a living, multiplayer galaxy. Explore, trade, mine, and fight epic real-time battles. Forge alliances or betray rivals—your choices shape the universe. Dive into stunning space combat now!

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.

Imperium: Galactic War is a free-to-play science-fiction strategy game of galactic warfare, empire building, and untold glory. Three mighty factions struggle for supremacy of a battle-torn universe. Some fight for peace, others for glory and conquest, and others seek only profit, power and chaos.

Space Gears is a next-generation Strategy set on Mars. Don't fret about micromanaging build orders, or your resources. Set your sights on victory by raising an army of mechs and build up your base in this fluid and fast-paced PvE and PvP strategy game.

Build up a Space Empire and establish control of the Galaxy and the Universe! Nova Empire is a multiplayer space game in which the aim is to build your empire and conquer the galaxy in epic space battles against your rivals with other allies worldwide!

Build your base, command your army, and wage real-time PvP war on a living conquest map. Clear a frontier of monsters and alien UFOs, join a faction, team up with friends, and climb the seasonal ranks. A classic base-building RTS with modern military firepower, ad-free on desktop.

An exceptional sci-fi strategy game based on space adventure as its core.

Build spacecrafts and fight with or against your friends! This game offers physics driven gameplay, with a variety of weapons and powerups. Slice your enemies in half with a laser beam, or erase them from existence with a black hole bomb!

Void Frontier is a space MMO featuring tactical combat, mining, trading, and exploration. Customize your ship, train your skills, and discover wormholes. Face pirates and rival pilots, or venture into space alongside your clan.

Build your interstellar empire in Exo7! Colonize new worlds, extract Metal, Silicium, Tridioxid, and Antimatter, build mighty fleets, and explore hyperspace. Choose your faction, conquer raids and bounty hunts, and dominate Sector 7!

Elyon is an open-world action-combat MMORPG set in the continent of Harth, where the two sovereign realms, Vulpin and Ontari, are at war for the control of a portal that leads to paradise.

A space RTS about decisions, not menus. Conquer planets, link them to fuel your war machine, and level up your empire with randomized perk cards. Crush all opposition.

A strategy where battles are limited only by the boundaries of the notebook! Experience a unique real-time strategy experience where every battle unfolds on the pages of a sketchbook, and all your units and structures are drawn with ink!

Make your living among the stars in XETODUS, a persistent multiplayer space sandbox. Fly and customize ships, mine and refine resources, trade on player markets, build industry, join clans, and compete in combat and races across a shared universe.

Scrap Metal Heroes Rebuilt is a real-time strategy game where you can customize a set of 4 robots with over 300 parts and fight them against an AI opponent or other players.

Galaxor is an online sci-fi strategy game where you build planets, research technologies, command fleets and expand your empire across the galaxy. Manage resources, join clans, take part in events and face alien threats in long-term space warfare.

Prime Domination is a real-time strategy game where you build your base, manage finance, produce powerful military units, and battle against AI or other players in large-scale multiplayer matches with up to 10 commanders.

Lineage 2 Essence - Step onto the cross-server battlefields, where preparation, coordination, and split-second decisions of every player shape the battle's outcome.Try different roles and playstyles until you find the one that fits you best.

Stars End is a sci-fi survival sandbox set on the wild frontier of a distant star system. Play solo or host your own server as you craft, build, and battle to survive in a galaxy shaped by danger, discovery, and your own grit.

Warhammer 40,000: Dawn of War - Definitive Edition is the ultimate Dawn of War experience, featuring the original Dawn of War and all its expansions, along with enhanced visuals, an improved camera, and 64-bit platform support.

Command and customize your own capital ships. Take down opponents in thundering, team-based combat. Dreadnought is a free-to-play shooter that puts you at the center of spaceship battles on a colossal scale.

WarTable is a real-time strategy sandbox where teams of up to nine players take command of a host nation. Build your military, shape your government, forge alliances—or betray them. In WarTable, strategy is everything, and democracy is just one of many options.

Stellarcraft is a sci-fi tower defense adventure: explore alien planets, gather resources, build defenses, and fend off waves of enemies, solo or in 4-player co-op. 🚀

Player bases are located on asteroids, which travel within the Oort Cloud. Once they’ve acquired the appropriate skills, players can control their asteroid’s movements. Mass-combat enthusiasts will love the Arena: here, players can battle it out against alien races or other Astro Lord players.

A persistent space MMO that runs in your browser. No download. No installation. Open a tab and you are in the Frontier. Trade, mine and fight across 2 universes and 12,000 sectors, in an economy that players build. And one mechanic that no other MMO has: war rewrites the map.

Design massive ships, bristling with weapons, on a macro scale. Engage in fleet-vs-fleet battles, featuring many different tactics. Play alone or in Coop combat missions, or form two teams of players (each with own fleet) to fight in an arena.

The COMPETITION is back in STARS SURVIVOR. Come and have fun in this multiplayer battle royale! Invite your friends over and head to the battlefield to find out WHO's the best!

Anispo is a fast paced 2D real time strategy game set inside a digital warzone. Command streams of bytes of data, capture network nodes, reinforce your defenses, and outmaneuver computer controlled or online rivals across customizable cyber battlefields.

Crossfire: Legion is a real time strategy game featuring tactical action in furious battles across a shattered version of the near future. Raise and customize your army to engage in intense online combat and carve your own path as you rise through the ranks. It’s a new generation of warfare.

Age of Ascent: Arrival is a new space co-op and combat game featuring direct-piloting solo and co-op missions and real-time PvE and PvP battles set in stunning space scenes.

Nova Era: Atom is a third-person spaceship extraction shooter built on an MMORPG framework. Dive into Void Space — explore, fight, and get out alive. Everything you bring back is yours.

Veyrasol is a real-time MMO strategy game set in the Veyra Spiral galaxy. Build colonies, command fleets, forge alliances, and battle for dominance across ~120-day seasons in this free-to-play browser-born strategy experience.

Real-time territory conquest. Claim regions on procedurally generated maps, forge alliances, and betray them. Every game is player-hosted — host it yourself and play with friends over Steam or LAN.

Stardust Exile is an RTS set in the Milky Way galaxy, containing currently known stars and exoplanets with their real characteristics. The remaining star systems are procedurally generated. It has both online mode and single-player skirmish mode. The online server is persistent and single-shard.