Help the lovely and brave soldiers in your units complete the new mission in this City Siege 4 Alien Siege Hacked unblocked game. They will have to wipe out all aliens invaders and save the hostages. Before starting to play City Siege 4 Alien Siege Hacked, you can set up your troop with the great abilities. Everything you buy will give you much more money, and you can upgrade them until it’s full. Let’s explore the special skills you have equipped for your characters and show your strategy! Enjoy it!