Download size

How many GB is Mission: Mars?

10 GB

Leave at least 17 GB free: games need headroom to unpack updates.

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

Protect Mars from waves of enemies in "Mission: Mars." As Sergeant Eric, lead your team through 60 intense days of battle. Choose suits, upgrade weapons to ensure the survival of humanity's future on the Red Planet.