No. Our goal was to bring prized tournaments to everyone for FREE. You can join any league and tournament without paying anything. We do however accept donations which is completely optional.
Normally all games are playable without restrictions, however their may be an exception when dealing with prizes that are age restricted.
Participating in any game on our website will give you EXP depending on your position, the higher level you are, the more access you have to leagues and tournaments.
Integrating your Steam account allows us access to your PlayerUnknown's Battlegrounds IGN. This allows us to cut out invalid accounts and also makes it easier to input results.