Basically it was an online multiplayer game, I think after a little while you had to pay a fee to keep playing. But you would compete in events, I think there was dressage, cross country, showjumping and agility. You could do these competitions against another specific player and if you won you would go up in the rankings.
There wasn't really any horse care or anything. It was a riding focused game.
Does anyone remember what it was called?