War Thunder 

World War II is a very interesting episode of human history, and its air and ground battles are objects of study even today. This massive multiplayer online game (MMO) lets you take part of that war as if you were one of the pilots or vehicle operators that fought those battles. As such, you need to accomplish several missions, like destroying the ground forces from your plane, or shoot down other aircrafts. You need to be careful of not being shot while fighting the enemy's army. If you manage to accomplish your missions, you will receive a reward in the form of enhancements for your vehicle.

The game has very realistic graphics and sounds, and thus, lets you feel as if you were on the battlefield. Being an MMO, you are not fighting against a computer, but facing other human players, which makes the game even more challenging and interesting. If you are not very familiarized with this kind of games, this one includes a step-by-step tutorial to get you started.

The only disadvantages I found does not have to do with the game itself, but with the way it is played. Being this an online game, it can lag at times, depending on the traffic of the server and on the speed of your connection. Also, the installation file needs to download additional files, which can take over an hour. Nevertheless, it is a good and entertaining game that is worth to try.

You need to create an account to download and join the game. Also, it is possible to log in using your Google or Facebook account.