Time and space foam island, unknown biological resources, construction base, adventure trip. 1. Build roads. 2. Arrive at space-time foam to obtain rare materials and advanced equipment. 3. Don't leave the road. 4. Demolition or PK. 5. Continuously opening up more features.
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No game lists 时空之海（Space Time Ocean） as one of its co-op favourites yet, so here are the closest matches by Steam tags instead.
QANGA: 750 years after humanity's fall, you must survive in a shattered world where Earth itself demands vengeance. Tear through the fabric of space to face the Voss, awaken the ancient civilisation, and dare to challenge the Sanglines, born from the bowels of a world that condemned you.
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The Universe is yours. SpaceCraft is an online space exploration and building game. Explore a vast galaxy of solar systems and planets, mine and craft resources, design and build ships, automate planetary bases and interplanetary logistics, trade and cooperate.
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Command your ship and fleet in a galaxy that truly lives: 150 sectors where six factions mine, haul, trade, build and wage war whether you're there or not. Trade it, rob it, defend it — or forge your own fleet and carve out your place in it. Play solo or in online co-op.
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Survive on an open-world island with unlockable abilities that help you on your journey in Gengu Survival. Craft new items as you level up and build your own base wherever you want. But be aware, there is something strange on this island...
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Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!
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Oh Ship! is a 1–4 player co-op space survival game where you and your crew coordinate to keep your ship running while space actively tries to destroy it. Salvage wrecks, fix systems, upgrade your ship, and survive the chaos.
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On a mission to explore a secret island discovered by the military, your plane crashes, leaving you as the sole survivor. Now, on the Island of the Condemned, your only concern is to survive and escape at any cost.
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Design, build, and pilot fully modular spaceships in first person, solo or with up to 4 players. Explore 15 unique planets, complete challenging missions, face the dangers of space, and unlock new components to improve or completely rethink your ship.
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Terraform a dead planet back to life in this open world survival crafting game. Explore ruins, gather resources, print machines, drive modular vehicles, grow forests, biomes, and ecosystems. Create life and make it thrive with your own hands.
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Void Crew is a Chaotic, Co-op Roguelite game for 1 to 6 players: Outfit your spaceship and crew for thrilling quests, brave fierce enemies in Space Battles... and try not to panic!
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