Download size

How many GB is Prion: Infection?

3 GB

That is less than the typical Adventure game, which needs about 5 GB.

Leave at least 9 GB free: games need headroom to unpack updates.

The figure is the storage Steam lists as required for this game, not a measured download.

Prion Protein disrupted the functions of the human brain, turning individuals into wild, aggressive mutants. As part of a special military unit, you are the last hope. You are tasked with stopping the epidemic and containing the infected mutants. Destroy all mutants and keep running for your life.