roblox is designed to let other people write server-side code in a way that minecraft isn't. yeah, it's possible to mod a minecraft server, but the engine isn't

roblox is designed to let other people write server-side code in a way that minecraft isn't. yeah, it's possible to mod a minecraft server, but the engine isn't built around making that easy, so it's a lot more involved in minecraft than it is in roblox.