You have to complete all the mission to progress in the game.

You can use a huge variety of weapons and can upgrade them with skill points. You can assume the role of the protagonist and your primary task is to fight against aliens and kill them all. According to the story, the aliens wants to destroy your world.

It includes more than thirty challenging missions and allows you complete it. The game takes place in the futuristic year 2553. The game provides you with the combination of Adventure, Third-person, Futuristic, RTS and Space elements. Halo: Spartan Assault is an Action-Adventure, Top-Down, Sci-fi, Twin Stick Shooter, Strategy, Single and Multiplayer video game created by Vanguard Games and published by Microsoft Studios. Do try it out if you haven’t yet and enjoy the ultimate fun. With a very involving story, brilliant visuals and an addictive gameplay, Alien Swarm is a blast. Now you must gather all of your comrades, and save all the survivors, send them back to the posts and clear the Colonies from the aliens and if it seems so hard to cordon them off, destroy the colonies and stop the aliens from spreading. According to the storyline of the game, your task is to eliminate all the aliens who have taken over the planet in the year 2052. Alien Swarm offers four main types of character classes such as Officers, Medics, Techs and Special Weapons and allows you to select any one of the characters, control them and keep on slaying the extra terrestrial enemies. The game offers forty different types of equipment that you can use in the game including futuristic weapons, loads of unlockable items and bundles of achievements etc. and allows you to fight off the enemy aliens by using state of the art weaponry and enjoy engaging yourself into an amazingly action-packed gaming experience ever. The game offers a 4-Player Co-operative game-play, Sci-Fi theme etc. Alien Swarm is a Free-to-play Single and Multiplayer Top-Down Shooter (60 Degree Perspective) and Action-based video game by Valve Corporation.

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