MMOPROJECTX'S PROFILE

Minecraft server uses 3rd party publicly available API to create server sided plugins which does not require players to install additional client files, just the base Minecraft game. Thus the game engine would be Minecraft, programming language is Java.

The largest and leading was called Bukkit, but has since been replaced with Spigot / Bungee. The expected player activity is between 500-2000 online at once for a project of this scale. Do note it's a multiplayer server, hence MMORPG with the large player count.

Up until recently, only very few servers managed to pull off a project of this scale. DungeonRealms did a smaller scale with infantile features, but succeeded as one of the first who successfully introduced this concept. They were soon bought out and into the ground. WynnCraft is another recent example that is blooming.