Free-to-play

(F2P or FtP) video games are games that give players access to a significant portion of their content without paying or don’t require paying to continue playing.

Free-to-play is newer than the pay to play model, and the video game industry is still attempting to determine the best ways to maximize revenue from their games.

Pay-to-win

In some games, players who are willing to pay for special items, downloadable content, or to skip cooldown timers may be able to gain an advantage over those playing for free who might otherwise hardly be able to access said items. Such games are called “pay-to-win” (abbreviated as “P2W”) by critics.

 
https://en.wikipedia.org/wiki/Free-to-play