This may be obvious, but is GTAV the most successful online shooter on the planet? (Never played it)
However, games like PUBG and Fortnite are free-to-play (PUBG is only free on mobile?) so in terms of actual sales, you could say GTA is more successful. Still not sure I'd class it as an "online shooter", though.
[1]https://en.wikipedia.org/wiki/List_of_best-selling_video_gam...
I don't know, even though there is shooting in GTA I don't think I'd call it a shooter.
> Not official; the numbers were estimated following a Steam API data leak in July 2018, which gave player ownership estimates for games on the platform that have achievements.