Top similar games like Coldstar:

NOVA WARP is a free-to-play open-sector multiplayer game with three factions. Team up against the creatures of deep space, fight for sectors, resources and prestige, master co-op dungeons, level your ship and dive into massive battles. Conquer the stars, pilot!

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.

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.

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.

Star Wrath is a multiplayer space extraction-action where you design your own ship and fight other players for resources in intense PvP and PvE battles.

Explore the mysteries of Sol and experience exhilirating first-person shooter combat in Destiny 2. Unlock powerful abilities and collect unique gear across story missions, co-op, and PvP modes.

Maelstrom is a licensed open source port of the original shareware game for the Macintosh by Ambrosia Software, Inc. It is a fast-action, asteroids-like game, with classic pixel graphics and original sounds.

Stake your claim, command your fleets, and wage epic war in space.

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.

From the team that brought you Aleph One, the classic sci-fi FPS Marathon Infinity from Bungie on Mac revived for modern hardware by the fan community.

From the team that brought you Aleph One, the classic sci-fi FPS Marathon 2: Durandal from Bungie on Mac revived for modern hardware by the fan community.

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!

Ignition Arena is a free-to-play, fast-paced tactical PvP game where players build and customize ships for intense space battles. Compete in dynamic arenas featuring strategic combat, skill-based mechanics, and extensive ship customization. Outsmart and outgun opponents to claim victory!

From the team that brought you Aleph One, the classic sci-fi FPS Marathon from Bungie on Mac revived for modern hardware by the fan community.

Engage in an intense space shooter that you can play in single-player or multiplayer with up to 6 players. Play a variety of different spaceships, each with their own unique stats, components, and playstyles!

You're a Junker pilot. Prove your space combat skills in our free-to-play, post-apocalyptic, multiplayer arenas. Vanquish your enemies in King of the Hill style online PvP battles. Earn zBits to unlock new and exclusive ships. Coming soon: Craft and customise your ship to your unique play style.

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.

With easy-to-master controls, a simple objective, beautiful top-down 2D graphics and an 80’s arcade game spirit, FINAL PILOT is an online multiplayer battle royale set in the deepest reaches of uncharted space.

Warspace 2 is a 1-4 player CO-OP space shooter with RPG elements, open-world and procedurally-generated galaxy. You can trade, craft, and fight your way through a universe, either solo or with friends.

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.

A unique space strategy game where thousands of players participate in one shared galaxy.

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!

The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits

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!

A top-down, fast paced hero shooter. Kill tanks to upgrade yourself and become an undefeatable killing machine. Fight friends or foes in multiple engaging gamemodes and become the best of your kind.

AQ2: Expanse is a massively multiplayer space strategy game. A single persistent universe with open PvP and PvE. Fight for control over the Aquila system's sectors in huge corporation wars, play with everyone, play in a group or play solo with plenty to explore.

VOID SKIRMISHER is an arcade co-op shooter for up to 8 players: jump the gate before the front line even exists, and face down hostile fleets as the first wave out where nobody's been before.

Compete in a stunning galaxy where skill reigns supreme! Destroy planets, upgrade your ship, and dominate intense top-down battles. Climb the trophy leaderboard in this ever-evolving space shooter with constant updates. Will you claim your place among the stars?

Dive into a chaotic, free-to-play party royale set in a hilarious dystopian future! Compete in absurd minigames, explore a vibrant sci-fi world, and outsmart your friends in this ever-evolving social adventure.

Infinity: Battlescape is a multiplayer space combat sim supporting hundreds of players on a single server. Join one of the corporate factions and fight for domination of a seamless, true-to-scale procedural star system. Participate in massive space and planetary battles involving hundreds of ships.

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.

Co-operative multiplayer game and complete code base available for free.

Wildgate is a PvPvE multiplayer shooter that blends tactical ship-to-ship combat with fast-paced first-person action. Evade deadly environmental hazards, search for powerful weapons and ship upgrades, and be the first crew to escape with the Artifact... or the last crew left flying.

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.

Massive ground and space battles with hundreds of units. Seamless landings on huge spherical planets. Interplanetary flights with explorable ship interiors. Boarding vessels anywhere in combat, space or surface. All in a single-server PvE co-op space-sim shooter.

One persistent universe. No instances, no lobbies. Full loot PvP. Mine, build, trade, fight, pirate, explore.