Still, probably the most popular shooting games, after the classical games with soldiers are the alien shooting games which nowadays are so well done, with excellent graphic that makes you feel like you are really in another dimension. Here is a list of 5 best alien games that should not be missed. 

Series Alien Breed are probably very well known. They are here since the 90ties but nowadays they are improved with excellent graphics, scary sound effects and intelligent AI. The story of Alien Breed: Impact (2010) is quite impressive, and the ambience is highly detailed. The player goes after re-imagined, nasty and highly intelligent aliens. The game could be played with a single-player or on multiplayer battle modes. The weapons could be upgraded and customized, and this adventure guarantees many creepy moments. 

 

Shadowgrounds: Survivor is a typical RPG-meets-shooter game. It offers two modes of gameplay: Campaign and Survival mode but also there are new elements like Powerful Mech and Sentry Turret. They give even more action in shooting enemies. The game has also tactical aspect, players could plan and attack enemies and use their special abilities on alien bosses. 

 

If you like to organize squad to eliminate groups of aliens, Alien Swarm will be your favourite. Can be formed a squad of Marines and planed an attack on alien enemies using a wide variety of weapons. The game is very intense and the environments are quite impressive. Again there is alien shooter-meets-RPG combination and player can choose between 4 unique classes and 8 characters, unlock items and achievements, configure and upgrade over 40 weapons.

 

Space Siege will ask from you tactical combat, there is a possibility to set up ambushes, and use special abilities to dodge and destroy alien enemies. There is a cybernetic upgrade of the weaponry, can be played in single player and cooperative multiplayer modes and has character-building game play elements. 

 

Alien Shooter Vengeance reminds of retro shooters and can be very addictive. Player will be surrounded by swarms of reptilian entities coming from all sides and to kill them he should use an arsenal of weapons that can be upgraded from the cash retrieved from dead bodies of crew member and alien enemies.