They have this referal program, if you create an account throught my referal, you'll get some persk and so will I. 

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Recruiting Ninjas! Sign up, suit up and help me take back the Solar System in Warframe! Click this link to sign up for this awesome Free-to-Play game and we’ll both receive cool rewards!

https://www.warframe.com/signup?referrerId=517d69a81a4d80dd3a00006d 

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I noticed that some of you actualy did get inspired by me  to play in the past, only to tell me later. So now I offer you a chance to help each other, should you want to give this game a try. ( please, when you are adding me on steam because you want to play warframe with me, atleast let me know somehow, I do not always recognise your nicknames or your intentions, so I wait for your introductions)

Warframe is a free to play ninja combat shooter. If you remember Gray Fox from metal gear solid, then Warframe is exactly that kind of gameplay. You acrobat your ass around the map and you either fire or slash your way throught enemies. This game has its own store and let me tell you, its the only game I felt safe pouring money into. Unless you buy mod packs, which are random, pretty much every other purchase stays relevant and prevalent.  The game is constantly adding new content and variations of gameplay. Last year they added an open world area and fishing! (and not as some dumb minigame, you have to aim and manualy catch the fish)

They started focusing on cinematic story, which I have to say, is pretty damn good.  Theres years of content in it, but everything is continualy revised and polished so it's pretty common for a player who got bored after a year, to find himself/herself/itself (if you identify yourself as a combat helicopter) in a new world only few months later, which is exciting, because I had that experience myself.

Let me end this with a funny observation, that this game is still holding its place in the top 5 most played games on steam. 

here's a screenshot of me and my warframe