4/5 Stars. It dropped one star because there are moments when you and your horse will fall down a huge cliff upright and land to keep wondering the wilderness. Not very realistic. The occasional floating object and odd behavior, such as your horse disappears the screen spins looks like its about to crash, then you on the floor covered in blood for no reason. So its not perfect and not bug free. It doesn't feel like its been through the same quality assurance at GTA for example..
A 4 full Stars because it is so immersing, I can not put this game down!! If you like open world games where you can wonder off and decide when and what you want to do, then you'll love this.
You'll learn to lasso, shot, gamble, ride a horse, break in a horse, herd cattle, collect meat and hide to sell the list goes on.. everything a cowboy would need to do. And of course there are the missions to do, when you want too.. no rush.. I might go off and explore the hills behind Armadillo today.. See what I can find!
Recommended for your collection.
Similar games; GTA IV, Fallout, Just Cause etc..