The game is a frustration to many, particularly who think of it as just hold 'em played with four cards down. The game also has many fervent adherents, sometimes known as Omaholics. Much higher-limit games exist, of course, but before jumping into them, you better learn how to beat the smaller games.
Players start with four downcards.
Those are their private cards, much as are the first two cards in hold 'em. After the players receive their downcards, there is a round of betting. The betting is usually on a two-tiered system. That is, like hold 'em, Omaha has four rounds of betting. The first two rounds are at the lower limit, and the last two at double that limit.