Escape from tarkov available on steam?
Many people during this Wipe asked me if the game was available on Steam and will be. the answer is currently no because the game is still in beta.
But in the future it may be available on Steam eventually, said one of the game's developers in 2016.
Buy the game on steam?
No it will be possible to buy it when it comes out of beta. But when it comes out if it ever comes out on it it will be the same servers.
Where to buy and download the game?
You can buy it directly from the game's official website: https://www.escapefromtarkov.com/
And you can buy Escape from tarkov cheaper on sites like instant gaming
(Information comes directly from the game's FAQ)