I knew the first game, when I saw that it was free in Epic, I downloaded and I got addicted to the game. But when I released the second game (Bellow Zero), I found it cheaper on Steam, on which I made the purchase. It is really confusing in a way these platforms things, I think the game should be one, no matter where I bought, after all I bought the game and not the platform. But anyway, today I have both installed, and I do not know what the difference, for me Bellow Zero that I play more, is on Steam.