@yomiel @Inginsub
sorry for wall of text btw...

they are simple to design but lead to complex gameplay (emergent design).

They are highly replayable games and it's hard to do that quickly as a small indie team for most other game genres.

It also gives you the same satisfaction that one gets from puzzle games. The puzzles are just presented differently (both deckbuilding and sequencing when playing cards).

I should let you know though that I am extremely biased when it comes to this topic because I've done a lot of studying on the genre and my favorite game is yugioh...