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A single-player 2D top-down pixel game with space physics. Mine asteroids in the middle of an asteroid field using manual controls or by directing mining drones. Protect the outpost, buy from trading ships, mine as much ore as you can and survive as long as possible! Do you have what it takes?
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Try this game before buying.
Sigma Prime is running out of resources! We have to venture into space and mine as much ore as we can for the home planet. Can you survive the harsh environment of an asteroid field? Use probes to discover the sector. Pilot mining ships or direct mining drones to mine ore from asteroids that fly by. Protect Outpost Sigma from collisions using shields. Buy from trading ships. Transports will come to take the much needed ore back to Sigma Prime. If the situation goes bad, you must escape! Good Luck. This is a single-player 2D top-down pixel game with space physics. Random generation makes every run unique. If you ever want to just mine some asteroids while trying to survive the harshness of space, this is the game for you.
Right now the cheapest offer for Space Outpost Sigma is CA$6.49 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Space Outpost Sigma is CA$5.19 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Space Outpost Sigma drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
