$19.99Cepheus Protocol Command the outbreak response
Cepheus Protocol is an open-world RTS about holding back a zombie pandemic with military force, built for co-op games with up to 16 co-op friends sharing one operation. You split the work, pool resources, and hold the line together while the infection keeps spreading.
Is Cepheus Protocol worth it?
Cepheus Protocol is worth it if…
- you like slow, careful planning against fast zombie hordes
- you want co-op friends to split base duty, pushes, and shooting
- you enjoy switching between RTS command and third-person combat
- you like tuning difficulty and infected types for the group
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Share one military operation with friends
Up to 16 of you share control of CERC in Pandemic Mode, pooling resources and splitting tactics against the infection. One of you keeps the aircraft carrier alive, since losing it ends the run. Another pushes infantry and vehicles into infected streets while someone else drops into third-person as an Operator and clears buildings up close. You decide who builds, who pushes, and who shoots, then adjust when a horde turns your own units and the plan falls apart.
RTS command that turns into ground combat
You command land, sea, and air forces across sprawling urban maps, locking down zones and hunting Patient 0 and their lieutenants before hordes consume each province. Infected hunt by sight and sound, so a loud push draws the swarm. When control gets messy, you take direct control of an Operator, drive vehicles, and use Doctrine unlocks like airstrikes and resupply drops. Character experience improves health and targeting, which rewards keeping the same troops alive instead of treating them as disposable.
A hard survival run you can tune
The Pangu Virus spreads, civilians turn, and rogue combatants form across the map, so every run pressures your defenses and evacuation choices. Research the virus, level the Doctrine tree for weapons and support options, and chase gene marks toward a way to kill Patient 0. Pandemic Mode lets you turn off infected types and adjust options for a custom scenario. It is challenging and can overrun an unprepared base, which makes a coordinated group with assigned roles feel less like chaos and more like a last stand with paperwork.
How does co-op actually work?
How many co-op friends can join you?
You pool resources, coordinate tactics, and fight the infection as one team, so groups can divide roles between base defense, forward pushes, and ground-level Operator combat.
Can you play it solo?
Yes, the tags include single-player alongside the co-op mode. Solo means you carry the whole operation yourself: carrier defense, troop command, Operator control, research, and hunting Patient 0 across the map.
What do you lose if the carrier falls?
The aircraft carrier is your mobile base in Pandemic Mode. If it is destroyed, you lose the run, so defending it stays the top priority while you expand, evacuate civilians, and push into infected provinces.
How flexible is Pandemic Mode?
That lets the group set the pressure, from a contained outbreak to a map-wide swarm with lieutenants expanding on their own.
