Zynga that brought OMGPOP took the game offline, so you can only play it by downloading their APP. Sorry.
Instead, as an alternative try: 8 Ball Pool Multiplayer
As Always, Have Fun.
Multiplayer Pool & Billard Game.
You are currently playing Pool OMGPOP online game on KBH Games. We have over 12,000 best selected games since 2007 from the free online gaming community. Game developer is OMGPOP. This game has been given 79.8% likes from 2505 users rating. We have many Kids Games and many other games for all ages. We are dedicated to bring you the best games and the best gaming experience on the internet. The best part is that every single game is free. Some of our categories include Strategy Games, Puzzle Games, Shooting Games, and War Games.