Corridor 7: Alien Invasion

A military facility called the Delta Base worked on experimental space technology. Their latest experiment called a dimensional gate (or the Vortex) led to the discovery of an alien world. However those hostile aliens went through the Vortex and overran the base and killed everyone within. A single soldier of the Special Forces, penetrates the base to kill the aliens and destroy the source of their power. Corridor 7: Alien Invasion is a first-person shooter video game developed by Capstone Software and published by Intracorp and GameTek. It was widely ignored for its outdated Wolfenstein 3D engine, which was technologically surpassed by Doom at the time.