Questomania: Portal

Your mission is to save the world from invaders from a parallel universe that is much more advanced in their development than ours. They invaded an open portal created by scientists. Now they are a real threat to the existence of mankind, and the portal for sending them back is corrupted. They are stuck in our world and determined to conquer it. Being in the secret laboratory for teleportation you’ll need to restore the portal and take a journey into a parallel world to prevent the disaster.