# Best Co-op Space Games to Play With Friends The best co-op space games on Steam: explore planets, build starships, mine caves and fight aliens together with friends. [PLAYNEXT](https://playnext.party/) · Published: 10/7/2026 ![No Man's Sky screenshot 2](https://playnext.party/steam-images/3da502bd-d319-48bf-b473-1f03eb248044/ss-cad26f1dc67d28327ccdabeecb68d5006ad5639b?width=1200) Space is big, and it is better explored with a crew. These co-op space games on Steam range from relaxed planet exploration to building fleets and fighting alien bugs. ## [1. No Man's Sky](https://playnext.party/en/games/no-mans-sky/) [![No Man's Sky screenshot 1](https://playnext.party/steam-images/3da502bd-d319-48bf-b473-1f03eb248044/ss-6c2ddcffe192b0e155a69aa2a1dd3f33b863033d?width=1200)](https://playnext.party/en/games/no-mans-sky/) A game about exploration and survival in an infinite procedurally generated universe. Friends can explore planets together, build bases and travel between star systems. Plenty of room for a group to set their own goals. *Play together: Online co-op, Online PvP* ## [2. ASTRONEER](https://playnext.party/en/games/astroneer/) [![ASTRONEER screenshot 1](https://playnext.party/steam-images/223263d6-ede4-4bee-947a-03eca9b6da80/ss-539bc5211ccdad2bc6cc70e4af40194d74eb0256?width=1200)](https://playnext.party/en/games/astroneer/) Explore strange new worlds and shape the terrain itself like clay. You build a base, manage resources and automate production, alone or with friends. Its friendly style makes it a great start for groups new to survival games. *Play together: Online co-op* ## [3. Starbound](https://playnext.party/en/games/starbound/) [![Starbound screenshot 1](https://playnext.party/steam-images/f91844b4-768f-4a66-884d-fea5267fc123/ss-2dcc1e0c07f7597edc6556b31b8df9902fddac1a?width=1200)](https://playnext.party/en/games/starbound/) After fleeing your home with a damaged ship, you beam down to the planet below, repair the ship and set off to explore the universe. Friends can explore, build and fight across planets together. *Play together: Online co-op, Online PvP* ## [4. Avorion](https://playnext.party/en/games/avorion/) [![Avorion screenshot 1](https://playnext.party/steam-images/77293fc8-1e96-4b4f-8565-d9a436347bd6/ss-c193c0313144967725034c8f9ba4d378dd801e77?width=1200)](https://playnext.party/en/games/avorion/) A procedural co-op space sandbox where you build ships from scalable blocks. Fight space battles, mine, trade and build an empire to save the galaxy from an unknown enemy. Great for groups who like to design their own ships. *Play together: Online co-op, Online PvP* ## [5. Cosmoteer: Starship Architect & Commander](https://playnext.party/en/games/cosmoteer-starship-architect-commander/) [![Cosmoteer: Starship Architect & Commander screenshot 1](https://playnext.party/steam-images/4f34f903-a3a8-4108-8a51-c9bd8f944618/ss-09a81962fe37ec21a377a113cb28459cd0ac8d11?width=1200)](https://playnext.party/en/games/cosmoteer-starship-architect-commander/) Design the starships of your dreams, then command them in battles while managing your crew. Play alone or with friends, and test your designs against each other in online PvP. *Play together: Online co-op, Online PvP · Early Access* ## [6. Warframe](https://playnext.party/en/games/warframe/) [![Warframe screenshot 1](https://playnext.party/steam-images/ecf5b7ee-7024-4a47-bd72-1095fb402a34/ss-2e4077f215eccde84171a4b8e0f2bc8a3264c776?width=1200)](https://playnext.party/en/games/warframe/) A free-to-play online action game where you fight alongside friends as powerful warriors across the solar system. Fast movement, a large arsenal and many missions keep a regular squad busy. *Play together: Online co-op · Free to play* ## [7. HELLDIVERS™ Dive Harder Edition](https://playnext.party/en/games/helldivers-dive-harder-edition/) [![HELLDIVERS™ Dive Harder Edition screenshot 1](https://playnext.party/steam-images/511b409d-ef3e-45d7-b13b-83258c3330b4/ss-487d792377661b10a8ed2a5765cfcfc6893f7dbb?width=1200)](https://playnext.party/en/games/helldivers-dive-harder-edition/) A hardcore co-op twin-stick shooter about the elite HELLDIVERS defending Super Earth in an intergalactic war. Teamwork, support drops and avoiding friendly fire decide every mission. *Play together: Online co-op, Remote Play Together* ## [8. Deep Rock Galactic](https://playnext.party/en/games/deep-rock-galactic/) [![Deep Rock Galactic screenshot 1](https://playnext.party/steam-images/6f9ccc5b-7f24-440b-aa12-f5f9e4de8364/ss-49a57d16c55b74a6f835c590421d299d417af4f8?width=1200)](https://playnext.party/en/games/deep-rock-galactic/) A co-op FPS about dwarven space miners in destructible alien caves. Four players dig, mine and fight swarms of alien bugs on a hostile planet, each with their own class and tools. *Play together: Online co-op* ## Find more games like these Browse the [full list](https://playnext.party/en/games/tag/space/) on PLAYNEXT, with filters for genre, tags and ways to play together. Choose your next game with friends. [Start a session](https://playnext.party/app/?lang=en) ## Related resources - [Best Survival Games to Play With Friends on Steam](https://playnext.party/en/resources/best-survival-games-to-play-with-friends/): The best multiplayer survival games on Steam: build a base on a raft, survive zombies, tame creatures and craft your way through hostile worlds together. - [Best Strategy Games to Play With Friends on Steam](https://playnext.party/en/resources/best-strategy-games-to-play-with-friends/): The best multiplayer strategy games on Steam, from Age of Empires II and Civilization VI to factory building and co-op tower defense. - [Best Co-op Shooters to Play With Friends on Steam](https://playnext.party/en/resources/best-co-op-shooters/): The best co-op shooters on Steam: heists, loot shooters, alien bugs and Tyranids, plus classic campaigns to play with friends. --- Source: https://playnext.party/en/resources/best-co-op-space-games/ Language: en