Breeder Protocol

The colony went silent. Something is breeding in the dark.
Breeder Protocol is a 1–4 player twin-stick co-op extraction roguelite. Your squad drops into a procedurally grown alien hive, races to reach the stranded crew before the Breeders get to them, brings the colony uplinks back online and fights its way out — if it can.

Drop. Land in a hive that has never existed before: tunnels, egg nurseries, flesh pits and the ruins of the colony itself.

Rescue. Survivors are cocooned deep inside. Every second you waste, a Breeder gets closer to them.

Extract. Power the uplinks, unlock the evac pad and hold it while the hive throws everything it has at you.

Twelve operators — veteran marines and battle-tested androids — each with their own voice, personality and signature ability. Call down a Rally Cry, hijack an enemy drone, ring yourself in napalm or perform field surgery under fire. Bots fill any empty slot, so the squad is always four strong.

The hive is alive. Drones swarm, Spitters lob acid from the dark, Stalkers flank, Bloaters burst and Praetorians guard the deepest chambers. The deeper you drop, the stranger the hive becomes — and the harder it hunts.

Five weapon classes — Pulse Rifle, Breach Scattergun, Smartgun, Incinerator and Arc Caster — with heat management instead of reloads.

Field Upgrades — level up mid-run and draft perks that stack into a build: piercing rounds, split chambers, nanite harvest, faction-only upgrades and more.

Field kit and call-ins — medkits, frag grenades, combat stims, sentry drones, orbital supply pods and turret drops.

Between drops — spend credits and scrap on weapons, mods and boosts, and take on contracts with their own mutators.

1–4 player online co-op with drop-in bots and built-in squad voice chat

Procedurally generated hives — never the same drop twice

12 playable operators with signature abilities and fully voiced banter

Campaign, Daily and Weekly challenges, endless Swarm mode and community Contracts

Ironman mode: fallen operators stay fallen

Full controller support — built for Steam Deck