Map size

yickson

This question above all is to see what size of map is recommended, at least in my case I see that I also feel that 5 layers is enough to make a good map in terms of details.

Samarium

The bigger the map, the more memory space it will take up (there are ways to optimise this: https://docs.rpgjs.dev/guide/performance.html#how-much-space-do-maps-take-up-in-ram)

A map of 100 * 100 tiles is sufficient.
For the layers, I think maximum 50 layers

There is nothing to prevent you from making huge maps (300*300 tiles by example) but you have to take into consideration

loading and display on the client side (players may be on low-powered machines)
there are techniques to put several different maps on several servers for horizontal scaling, it is more complicated with huge maps

yickson

Excellent, I am clearer with your answer, thank you very much