Niosa Refinery is the first map in Orion's Threat, one of the campaigns introduced in Alien Swarm: Reactive Drop.

Objectives Edit

  • Destroy Swarm Eggs 0/23

Clear complex area

  • Redirect power

Restore power inside LVC

  • Recieve Code

Unlock access to the deeper levels

  • Proceed deeper inside the facility

Go deeper inside

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