By: Upstairs Games
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Possible One is the ultimate colony management game set in space, and the only space-related RTS game based on proven or very feasible technologies, avoiding sci-fi.
PC (Microsoft Windows) · May 22, 2026
Worldwide · Exact date · Early access · IGDB
Catalog sources
60 achievements available.

The first casualty of the frontier.
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A high price for progress.
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Space is a dangerous place.
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You need more than one table in the mess hall now.
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More people than some small Earth towns.
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A self-sustaining community is forming.
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A small team, a big mission.
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You are managing a massive industrial hub.
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High-speed travel.
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Managing the thermal load.
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Safe passage between modules.
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Overcoming the terrain.
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Spanning the power lines.
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Harvesting the air.
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Farming in a vacuum.
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A place to rest.
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The ultimate construction tool.
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Moving water and fuel.
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Hoarding fluids.
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Health and wellness.
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Turning rocks into steel.
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Nuclear power at your fingertips.
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A remote presence.
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Mass production begins.
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Small-scale crafting.
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Reaching out to the horizon.
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Advancing the tech tree.
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Unlocking the map.
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Organizing your inventory.
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For the big beams.
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Maintenance for the fleet.
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Somewhere for the rovers.
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Extracting H2O from the ground.
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Tidying up the base.
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You really hate rocks.
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Flattening the world.
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Your first delivery to Earth/Command.
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Headquarters is starting to notice your efficiency.
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Mastery of the paperwork and the payloads.
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You rarely miss a deadline.
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You are a critical node in the interplanetary economy.
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You’ve filled the map.
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A large, sprawling base.
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Safety first.
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A maze of hallways.
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You could feed a small country.
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Room for everyone.
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Massive energy demands.
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Complex fluid logistics.
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Scoping the dirt.
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Your resource piles are massive.
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Significant mining progress.
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You’ve moved a mountain.
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Your first geological data.
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No secrets left in the soil.
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Mapping the local minerals.
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Total geological dominance.
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You have truly mastered the game.
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Feeding the masses.
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Food security achieved.
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