Cepheus Protocol

About

In Cepheus Protocol you lead a squad of soldiers battling an alien virus outbreak in San Francisco. Manage limited resources while defending quarantine zones from infected civilians and terrifying mutations. Issue real time commands to rescue survivors balance base building and direct combat as the clock ticks toward a citywide lockdown. Each mission forces tough choices between saving lives and eliminating threats. The game shines with its relentless tension and reactive environments. Every decision impacts survival rates and mission outcomes. With co op and competitive multiplayer modes it offers 30+ hours of single player content according to community estimates. The lack of reinforcements creates constant pressure while adaptive enemy behavior keeps strategies fresh. Set on PC since 2020 it maintains a dedicated modding community for custom scenarios and units.

Storyline

Cepheus Protocol is an open world RTS military survival game. You play as CERC, hunting Patient Zero while keeping quarantine camps alive. Hold the line against brutal mutations and rogue civilian combatants. No reinforcements. No backup. It is on you.