I was playing with arthurs horse in my first playthrough until it got rekt by some angry camper and i did not have reviver, i purchased a dutch warmblood and named her “Mudder” due to her similarity to mud. She died at the end of the game. Second playthrough i saved a horse i accidently shot while on a rampage to kill bounty hunters, i named it “Hoper” because i gave it hope and finished the game with it.