f2p is “Free to Play” or “Fight to Play”
c2p is “Cheap to Play”
p2p is “Pay to Play”
p2w is “Pay to Win”
They all describe a ‘type’ of player. Are you someone who is happy to take a lot of time to develop your game and not spend any money? (f2p), or maybe you are someone who wants to spend just a little bit of money every month to get some new heroes or buy the second builder (c2p), or are you someone who is willing to spend a lot of money to make sure that you get the best heroes and the materials that are needed to ascend them (p2p, p2w).
I am c2p, but increasingly I am f2p. I think that is where most of the Empires & Puzzles community are situated.
Here is a great resource for you to understand all of the phrases that are used in the forum: