Omaha High has 2 games; the 'Pot Limit Omaha High' game and the 'Limit Omaha High' game. Like Texas Hold'em, Omaha poker follows a community card style - Read more about it here.

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Play online Omaha High-Low poker with Noble Poker.

I found no adware or anything similar what-so-ever in this games installation. When i uninstalled it, it also seemed to remove all of the files with no problems.

Pot Limit Omaha High (A player can bet what is in the pot.)
Limit Omaha High (there is a specific betting limit applied in each game and on each round of betting)

Like Texas Hold'em, Omaha poker follows a community card format. That is, players receive hole cards, but must create a hand using cards that are turned over in three segments (the flop, the turn, and the river).

Unlike Hold'em, Omaha players receive four hole cards. They can use only two of these cards in combination with the community cards to make a five-card hand.

The game begins with a blind and a small blind. To make sure something happens each deal, the casino uses a "dealer button."

At the beginning of the game, the dealer gives each player a card face up. The highest card becomes the faux dealer. The person next to the dealer becomes what is known as the "little blind." They must put one small bet in front of them.

The next person becomes the "big blind." They must put twice the amount in front of them. This happens before any cards come out of the dealer's hands.