MMOs that can be played for free, but usually offer premium membership for added content or sell special items to those who want to dish out their real money.
Alternate names: F2P, FTP, Play for free, play4free, p4f
Name variations: free to play
The first video game about Free-to-play was released in 1980.
Free-to-play games may additionally have premium membership (subscription) or item shop (microtransactions).