I rmemeber reading it's based from the MMO LaTale
If you also want the multiplayer aspect of it then those kinds of games are called MMOs, such as final fantasy 14. There's also the monster hunter games but they're not exactly MMOs, they check the "slaying monsters and customizing ur character" boxes tho
Toram online is a similar game it’s an old relic so
If you play on mobile and want an easy one to start I recommend Legends of Neverland
Guys do you know what kind of game this is called? It's like.. slaying monster but you still has the chance to custom ur character (I wanna play something other than genshin! ㅠㅠ)