File: Cepheus.protocol.v1.1.18.zip ... »

: Units have limited line-of-sight and hearing, making stealth and lighting (flares, spotlights) crucial during night cycles.

: The original version (including v1.1.18) is now classified as the Legacy build , while a modernized, more stable version serves as the main game as of early 2026.

In Cepheus Protocol , you lead the to contain the Pangu Virus in San Francisco. File: Cepheus.Protocol.v1.1.18.zip ...

: You can play as a traditional RTS commander or take direct control of "Operator" hero units in a third-person perspective.

: Revised to be more effective, triggered by the middle mouse button. : Units have limited line-of-sight and hearing, making

Since the 1.1.18 update, the game has undergone a .

: Overhauled for better tactical positioning during TPS gameplay. : You can play as a traditional RTS

: Adjusted show/hide animations for better visibility. General Gameplay Overview