It’s not an easy game, and it will require the complete cooperation. Soon after you start the journey, you will be attacked by hordes of aliens, and you will have to fight for every inch. Weapons and abilities differ from one class to the other, and there are numerous obstacles in your path. A team of four soldiers, from different classes ideally, have to go through a level one end to the other for various reasons.

The idea behind Alien Swarm is not complicated. What’s even worse, there is a special hat that you get in Team Fortress 2 if you play this game, so you might find yourself with alone on a map after all of your mates got their hats and left you for dead. The reason I’m mentioning friends is that is mainly a multiplayer game, and you need other players to help you, but the servers are not all that populated. If you and three of your closest friends are looking for a fantastic co-op game to pass the time, then you will be surprised to know that you can get Alien Swarm right now. Unlike that game, Alien Swarm has no microtransactions, and it’s simply a very well made multiplayer game with great co-op. It’s not difficult to imagine that Valve had the courage to make a really good game and make it available for free, but this happened before they decided to release Team Fortress 2 for free as well. Alien Swarm is a completely free co-op multiplayer game developed and published by Valve.

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