Co-op games like ZeroSpace

Loved how competitive and replayable ZeroSpace can get? These co-op games are a good place to start. You can bring friends along for most of these.

Executive Assault 2
Executive Assault 2 mixes base-building strategy with first-person shooting in space. One of you runs the company as CEO while co-op friends join as Executrons to fight on foot, drive tanks and mechs, fly fighters, and board starships. A strong pick for co-op friends who want shared battles with one brain on the map and the rest in the action.
Competitive, Replayable, Fast-paced
82% of 1,609 Steam reviews are positivePlayers online now: 6$24.99
Ashes of the Singularity: Escalation
A massive-scale real-time strategy game where you and co-op friends command thousands of units across huge maps. Pick the Post-Human Coalition or the Substrate, grab resource points, build bases and armies, and settle it together in multiplayer or against the AI.
Competitive, Replayable
76% of 2,715 Steam reviews are positivePlayers online now: 51$5.99
Zero-K
Zero-K is a free sci-fi RTS with giant robots, physics-driven battles, and a 70-mission campaign you can play solo or with co-op friends. Team up against the AI or waves of chicken-monsters, reshape the land together, and command huge armies without paying for an advantage.
Competitive, Replayable, Fast-paced
93% of 4,446 Steam reviews are positivePlayers online now: 150Free
Stellar Warfare
Space RTS with base building and ship customization. Personal passion project. More than 200 available ships, weapons and modules to design your fleet with. Contains a small campaign, several single and multiplayer game modes and a coop game mode. Also contains Wave defense!
Competitive, Replayable, Fast-paced
80% of 321 Steam reviews are positivePlayers online now: 1$19.99
Sins of a Solar Empire II
Team up to run a living galaxy in real time in Sins of a Solar Empire II. You and co-op friends expand across orbiting planets, build fleets and starbases, and hold the line together against AI or other players in 10-player lobbies with drop-in, drop-out joining.
Competitive, Replayable
82% of 7,270 Steam reviews are positivePlayers online now: 848$49.99
Stormgate
Stormgate is a free-to-play real-time strategy game with a full single-player campaign, 3-player co-op, and PvP versus modes on over 60 maps. Our Editor is also freely available for you to craft just about any custom game mode you can imagine. Join our development journey today!
Competitive, Replayable, Fast-paced
46% of 9,289 Steam reviews are positivePlayers online now: 5Free
Silica
Silica lets one co-op friend command an RTS army from above while the rest fight inside it on foot, as humans or aliens across the dunes of Baltarus. Set up a private match against configurable AI, split the roles, and hold ground together with harvesters rolling and dropships overhead.
Competitive, Replayable, Fast-paced
76% of 4,648 Steam reviews are positivePlayers online now: 352$24.99
Planetary Annihilation: TITANS
Command robot armies across whole solar systems with co-op friends, then end the match by smashing a planet. TITANS keeps the scale huge and the rules simple, so you can team up, build fast, and throw Titans, nukes, and asteroids at the problem together.
Competitive, Replayable
84% of 11,433 Steam reviews are positivePlayers online now: 215$29.99
Red Solstice 2: Survivors
Year 117 After Earth, Mars is overrun by STROL mutants, and your Cell squad is humanity's backup plan. Grab up to seven co-op friends, pick from six classes, and hold the line in real-time tactical missions while biomass spreads across the map. Plan fast, shoot faster, research something bigger for next time.
Replayable, Fast-paced, Tense
70% of 2,586 Steam reviews are positivePlayers online now: 11$14.99
Intruder Alert: Ixian Operations
Intruder Alert is an science-fiction RTS having 6 totally different factions. It contains a single-player campaign, local LAN multiplayer, simple single player games and special challenges like Tower Defense.
Competitive, Replayable, Tense
67% of 72 Steam reviews are positiveFree
The Scouring
The Scouring is a fast-paced fantasy RTS where you and co-op friends build bases, raise human or orc armies, and hold out against nightly undead waves. Or skip the macro: pick a hero, grab loot, and let AI run your base while you smash things. Team skirmishes for up to 8 players included.
Competitive, Replayable, Fast-paced
87% of 1,180 Steam reviews are positivePlayers online now: 13$17.49
AI War: Fleet Command
"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...
Competitive, Replayable, Tense
85% of 992 Steam reviews are positivePlayers online now: 3$9.99

Cheaper than ZeroSpace

Executive Assault 2

Executive Assault 2 mixes base-building strategy with first-person shooting in space.

$24.99

Ashes of the Singularity: Escalation

A massive-scale real-time strategy game where you and co-op friends command thousands of units across huge maps.

$5.99

Stellar Warfare

Space RTS with base building and ship customization. Personal passion project.

$19.99

Executive Assault

One of co-op friends runs the whole corporation from above while the rest fight for it on the ground.

$12.99

Silica

Silica lets one co-op friend command an RTS army from above while the rest fight inside it on foot, as humans or aliens across the dunes of Baltarus.

$24.99

Sins of a Solar Empire®: Rebellion

Command a space empire with co-op friends in huge real-time battles.

$19.99

Planetary Annihilation: TITANS

Command robot armies across whole solar systems with co-op friends, then end the match by smashing a planet.

$29.99

Red Solstice 2: Survivors

Year 117 After Earth, Mars is overrun by STROL mutants, and your Cell squad is humanity's backup plan.

$14.99

The Scouring

The Scouring is a fast-paced fantasy RTS where you and co-op friends build bases, raise human or orc armies, and hold out against nightly undead…

$17.49

AI War: Fleet Command

"You are outgunned. You are massively outnumbered. You must win." These are your orders.

$9.99

Heroes of Science and Fiction

A turn-based sci-fi strategy in the Heroes formula: pick one of 5 space-faring factions, grab planets, build cities, and lead commanders with 7…

$29.99

AI War 2

AI War 2 is a grand strategy and RTS hybrid where you and co-op friends start with one planet against an AI that owns the galaxy.

$19.99

Hidden gems like ZeroSpace

Heroes of Science and Fiction

A turn-based sci-fi strategy in the Heroes formula: pick one of 5 space-faring factions, grab planets, build cities, and lead commanders with 7…

$29.99

The Scouring

The Scouring is a fast-paced fantasy RTS where you and co-op friends build bases, raise human or orc armies, and hold out against nightly undead…

$17.49

BattleGroupVR2

BattleGroupVR2 is a virtual reality real-time space strategy where you explore the galaxy and lead a fleet of powerful warships from the bridge of…

$24.99

Frontline Crisis

Defend humanity's last hope, pilot a powerful mech, in Frontlines Crisis!

$5.99

Battle Realms: Zen Edition

A classic fantasy RTS where peasants become samurai, cannoneers, or berserkers, and up to 8 co-op friends can share the chaos.

$14.99

ZEPHON

ZEPHON is a post-apocalyptic 4X where you and co-op friends each run a survivor faction, build cities, research strange tech, and fight turn-based…

$39.99

9-Bit Armies: A Bit Too Far

A bright voxel RTS built for co-op friends: team up in the two-player campaign, hold out together in Survival, or fill huge maps with up to 8 armies…

$19.99

War of Dots

War of Dots is a minimalist real-time strategy game stripped down to light units, heavy units, and cities.

Free

Executive Assault 2

Executive Assault 2 mixes base-building strategy with first-person shooting in space.

$24.99

Silica

Silica lets one co-op friend command an RTS army from above while the rest fight inside it on foot, as humans or aliens across the dunes of Baltarus.

$24.99

Sins of a Solar Empire II

Team up to run a living galaxy in real time in Sins of a Solar Empire II.

$49.99

Retro Commander

Retro Commander is a post-apocalyptic real-time strategy wargame (RTS).

Free

Newest co-op games like ZeroSpace