Outposters

Outposters is a co-op third-person shooter for 1–4 players, with a rogue-lite structure. You and your squad defend a core from waves of infected, then head into the city between waves to scavenge weapons, ammunition, medkits and supplies. The outbreak took the city in a week, and the core your squad holds is what keeps the remaining structures running.

Defend the core

Each wave sends more infected toward the core. Hold the perimeter with your squad, using the streets and whatever weapons you carry. Between waves, venture into the city to search for supplies and base upgrades, then return before the next wave arrives. If you take damage on the way back, your teleport is cancelled.

You can retrieve upgrades from laptops in the field, including pulse cores, auto-turrets, repair drones, shield blooms and an overcharge that clears the yard.

Five operators

Each operator has a distinct set of stats and three abilities. Choose one to fill a gap in your squad:

• Vera: a soldier with heavy weapons, suppressing fire and a combat signal that buffs nearby allies.
• Doctor: a chemist who uses toxic clouds and antidote fields, with stamina that does not run out.
• Nyx: an assassin who can shadow step and mark targets for execution. She is lethal from behind but vulnerable to mistakes.
• Kain: a wanderer with a grapple shot and recon scans, with neither a bad nor a great matchup.
• Murdar: a survivor with a firm stance and second wind, whose endurance can turn a wipe into a save.

Weapons and infected

The city contains nearly 40 weapons, including pistols, dual pistols, shotguns, rifles, a sniper rifle, a flamethrower, a chainsaw and a rocket launcher. You can also find katanas, fire axes, sledgehammers, nailed bats, crowbars and pipe wrenches, as well as grenades, molotovs and pipe bombs. Melee weapons use combo chains, and every item you find goes on your weapon wheel, where its supply can run out.

The infected have different roles: runners rush you, spitters attack the core from range, leapers cross cover, bombers close in and detonate, and screamers summon more infected to the block. Bloaters leave poison when they die, while Armored Riots resist pistol fire. Every fourth wave brings a much larger enemy.

Waves and modes

The main run has 16 waves and four bosses, and can be played solo or in online co-op for 1–4 players. Five difficulties range from Normal to Apocalypse, with curses available for squads seeking an added challenge. After the final boss, Endless Siege lets you continue playing and compete on a Steam leaderboard.

Weapons unlock as you play, and each operator has goals to complete. Cosmetics can be earned on the higher difficulties.