Alien Assault: Left 2 Die is a top-down action game where players assume the role of a special marine tasked with infiltrating an alien base to eliminate the looming threat to humanity. Whether playing solo or in co-op mode, gamers engage in intense combat armed with various weapons like pistols and shotguns.

The game comprises a captivating main campaign with ten diverse missions across different locations. The primary objective remains constant: survive till the end of each level while fending off relentless alien assaults. Initially facing a few aliens, players soon encounter swarms of enemies, intensifying the challenge.

Alien Assault: Left 2 Die offers an entertaining two-dimensional arcade experience, drawing inspiration from the Space Hulk universe despite lacking official licensing.