Cepheus Protocol

Halcyon Winds

Available Ready to Play Free tier ActionAdventureIndie

An unimaginable plague has been released in San Francisco, turning the population into mutated creatures hellbent on spreading the Pangu Virus. Inspired by classic RTS series Company of Heroes and World in Conflict, it is up to you to win back the city before the Pangu Virus spreads globally.

Available on GeForce NOW

Play type: Ready to Play — no install needed
Membership: Free tier
Last verified: 28 Jul 2026

Available on

Steam · Halcyon Winds Open store ↗

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