Gateway To Earth

You are a soldier in an army. Military got to know that on Moon Aliens have made a military base and has developed a portal to easily get to Earth. You are ordered to protect the planet. Your aim is to defeat them and find the portal that is the Gateway to Earth.

In this Game, the Theme "Gateway" is used as a portal that leads to Earth.
Controls:

WASD for movements

Space to Jump

LeftShift(toggle) to Sprint

Left Mouse Button: to Fire