Carom 3D was a 1999 freeware online sports simulation videogame released by Neoact in 1999. Initially developed as a school project of a Korean student known as Comworm, it is a multiplayer online simulation of pool and billiards.

Carom 3D is at least in part an accurate simulation of eight-ball, nine-ball, rotation pool, three-ball, four-ball and original six-ball. The game can be played in two different modes: first-person 3D perspective and fixed overhead view.

The main aspect of Carom 3D is online confrontation with players from all over the world. Spinning, as in real life pool and billiards, takes an important role in Carom 3D, specially in pocketless games where most shots are not even possible without a deep knowledge of pool physics and spinning.