The acronym is a little strange, but it stands for Multi-User Dungeon.
A college student in England named Roy Trubshaw created MUD off the ideas of the popular game Dungeons and Dragons in 1978.
To help you stay safe, chats are anonymous unless you tell someone who you are (not suggested! Predators have been known to use Omegle, so please be careful.
MUDs had a combination of role-playing games, hack and slash, player vs.
player, Interactive fiction, and the first form of online chat.