aliën invasion

This is a first-person shooter game, which is a battlefield full of aliens.As a special forces soldier, players are free to explore or investigate the surrounding area, or kill aliens.But the player must guarantee his life as much as possible, under the premise of survival.<br> Control keys:<br> Right-click targeting<br> WASD movement<br> The left Shift running<br> Left mouse button attack<br> Space leaping<br> The left Ctrl squats<br> Mouse control direction<br> R Loaded Weapons