Co-op games like CrossPlanet Beta
Below are 8 cooperative Steam games similar to CrossPlanet Beta, ranked by player overlap and content similarity. Every pick supports cooperative play — online co-op, LAN co-op, or shared/split-screen — so you can play with friends right out of the box. imho.run pulls from the same Steam category data Valve uses internally, so "Co-op" here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like CrossPlanet Beta page.
Ranked picks
- 1
Planetary Conflict: 2301
Online Co-op alternative to CrossPlanet Beta — playable with friends. Shares Action and Indie with CrossPlanet Beta.
Planetary Conflict: 2301 is sci-fi multiplayer third person shooter set in the future, in a war between the Lunar Federation and Planetary Union.
- 2
TimeLost
Online Co-op alternative to CrossPlanet Beta — playable with friends. Shares Action and Massively Multiplayer with CrossPlanet Beta.
TimeLost is a Team-Based PvP Arena Fighter. Master precision combat, customize your playstyle through dual-weapon builds, and climb the ranks in Arenas that transcend space and time.
- 3
KILLNETIC
Online Co-op alternative to CrossPlanet Beta — playable with friends. Shares Action and Indie with CrossPlanet Beta.
KILLNETIC is a gothic steampunk MULTIPLAYER movement shooter. It takes the speed and momentum tech of shooters like ULTRAKILL and Quake and drops it into fast, competitive PvP!
- 4
Spheromania
Online Co-op alternative to CrossPlanet Beta — playable with friends. Shares Action and Indie with CrossPlanet Beta.
Bounce, blast, and outlast in Spheromania. A fast-paced arena shooter where drones duel with blasters, mines, and mid-air hops. Manage your energy, dodge the shrinking arena, and be the last sphere hovering. Solo mode or online multiplayer.
- 5
Scionide
Online Co-op alternative to CrossPlanet Beta — playable with friends. Shares Action with CrossPlanet Beta.
Scionide is a fast-paced sci-fi shooter set in 2268 AD, where the Amalgamate Republic fights for survival against the Scion Empire. Battle in single-player, PvP, and co-op PvE across dynamic maps.
- 6
Astro Yoinkers
Online Co-op alternative to CrossPlanet Beta — playable with friends. Shares Action and Indie with CrossPlanet Beta.
Team up with your fellow Astro Yoinkers in this fast-paced multiplayer CTF. Physics-based grappling across moving asteroids, yoink enemy crystals, and vaporize lobbies with orbital strike satellites.
- 7
Decisive Strike
Online Co-op alternative to CrossPlanet Beta — playable with friends. Shares Action and Indie with CrossPlanet Beta.
A sci-fi team-based Third Person Shooter where strategy is as important as your reflexes.
- 8
The Fixers
Online Co-op alternative to CrossPlanet Beta — playable with friends. Shares Action and Indie with CrossPlanet Beta.
The Fixers is a third-person cyberpunk extraction shooter. Raid deadly city zones, loot rare tech, fight AI and rival mercs, and extract or lose it all. Upgrade your Hideout, take contracts from Fixers, and survive PvE or PvPvE runs to build your legacy.