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Sol Protocol

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About Sol Protocol

Sol Protocol is a cooperative space survival game for one to three players. You crew a ship, explore the galaxy for resources and loot, and work together to survive enemy encounters. Each player takes on a distinct role, with its own tasks and tools.

Crew roles

You can play solo, as a duo or with a full crew of three. The Pilot navigates through asteroid fields, the Gunner operates the turrets, and the Captain plans your next moves and manages the ship’s shields. All players can access the ship’s rudder, weapons, shields and galactic holomap.

Explore and scavenge

Resources found across the cosmos are needed to maintain and upgrade your ship. You search abandoned space stations and lost vessels, where traps, puzzles and patrolling enemies can stand between you and the best loot. Oxygen supplies impose a time limit on these expeditions.

Ship maintenance

The ship’s systems are modular and accessible, and each can be damaged, repaired and upgraded. You replace damaged components with parts salvaged from abandoned bases and vessels, put out fires when parts cannot be replaced, and improve individual ship features to make them sturdier or give them new traits.

Space combat

Enemy spaceships roam deep space, seeking to destroy and loot your ship. You use weapons scavenged across space and plan around your available resources during real-time battles against procedurally generated enemies. Encounters are randomized, and sometimes warping away is the only way to avoid destruction.

Frequently asked questions

Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.

Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

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