Space Monsters

Space Monsters is a free-to-play/open-source, futuristic top-down shooter video game with retro-styled graphics and some elements of both arcade and role-playing game mechanics. This game has been influenced and inspired from other shooter games, most notably Alien Shooter, Alien Breed, Crimsonland, Space Invaders,Alien Swarm, Half-Life, Doom, Quake, and The House of the Dead.

The story of this game takes place in the spectacular years of 2025 (when the first incident involves with the landing teleporation devices before Roki's presence) and 2026 (Syrax's turn after its predecessor's death), where you can play as an operative of I.F who is dispatched of the abandoned headquarters with long passages of military complex to clear out from the horde of alien invaders controlled by their enormous masterminds' evil presence, especially the outside counterpart. So the goals are to be a hero and save every humankind on earth from extinction as the chief plans by the leader of I.F.

The fate of humanity is upon you.