This is a list of PC horse games that will have you galloping to your next objective. Steam has plenty of games to try, but only some of them let you choose a horse as your mount. With that being said, many of these PC games aren't exclusively about horses, but rather games where you can ride a horse.
Some horses are lucky enough to be taken on quests, like those in The Elder Scrolls V: Skyrim. Use your four-legged ride for stealth while sneaking past an enemy in Metal Gear Solid V: The Phantom Pain. Or just wonder what horses have to do with anything in the Steam indie puzzle game, Pony Island.
Hopefully you will find the PC horse game you are looking for on this list. If you know of any horse games on Steam that aren't here already, please add them so that others can discover those titles!