HEROS is a high stakes variation of HORSE. It is Holdem, Razz, Omaha, and Stud. There is no hi/lo.
HA = Pot Limit Holdem, and Pot Limit Omaha
HO = Fixed Limit Holdem & Fixed Limit Omaha hi/lo
The game switches every 10 hands in ring games, and every level in tournaments.
HA = Pot Limit Holdem, and Pot Limit Omaha
HO = Fixed Limit Holdem & Fixed Limit Omaha hi/lo.