Warcraft 3 tft is great it's the rts that gave birth to many creations of custom maps & the creation of the moba genre. Had one of the biggest roleplay communities ever back in the day & had the first it game that was super popular way before "among us" it was a custom map called PARASITE! Also was a super big inspiration for tower defense games. There was even some awesome made DBZ maps.
Once blizzard remade it with warcraft3 reforged it kinda went to shit the remaster made it from offline to online only & changed how the whole online play worked. Also the world editor the tool for making custom maps kinda got screwed up.
There's lots of people who play on the older versions which they call classic or legacy warcraft 3 these days. A lot of tools were made for those back then & you can host your own custom battlenet realm to have people on those old versions connect & play online. People use to use gameranger & those other kinda connect to people through LAN type of applications like Hamachi.
It's defintely worth the experience to play & theres tons of sites which have the millions of custom maps that were created for you to download & try.