Mind you, Minecraft's income comes from a lot of merchandise and spinoffs, whereas GTA is mainly from the game itself.
I was curious; RDR 2, also a Rockstar game, is the #14 best selling game of all time apparently; I didn't know it did that good. The other GTA games are also in the top 50.
Source: https://en.wikipedia.org/wiki/List_of_best-selling_video_gam...
[1]: https://www.eurogamer.net/articles/2014-06-26-minecrafts-con...
Virtually every release Rockstar does sells millions. And from my point of view their games are fun too.