About Outpost: Infinity Siege

Outpost: Infinity Siege is an action-strategy FPS centered on building and defending your own outpost. You explore the world to gather resources, then merge and upgrade outpost units to construct a base tailored to your needs, combining base-building with first-person combat.

Weaponry is a standout element, built around the unique XEN Firearm. You fully exploit its various protoslag attributes and pair it with ammunition offering diverse performance, giving you room to adapt your firepower to the situation. Loot and progression drive much of the experience through an exploration mode packed with abundant difficulty levels, varied gameplay features, and distinctive maps, where you venture into brand-new zones full of hazards and opportunities to harvest powerful new units.

Co-op play adds another dimension, letting you fight alongside friends on Recovery Day or band together in Endless mode to survive infinite waves of monsters until the very last moment. Blending action, strategy, and FPS gameplay on PC, Outpost: Infinity Siege ties resource gathering, outpost construction, unique gunplay, and cooperative survival into a single loop of exploration, upgrading, and defense.