As you'll see by browsing other game boards on openworldgames.org, most of the interaction is from single player gamers.
Here are some bullet points on the game:
Become a Gunslinger – Harness a variety of weapons from various revolvers to heavy-caliber cannons and machine guns. Every accurate shot increases concentration, which allows players to unleash deadly shooting modes when outnumbered and even deadlier ones when the brothers w@&k together
Dual Collaborative Gameplay – Players choose to embody Ray or Thomas, each with a distinctive gameplay style (close or long range), specific abilities (lasso, dynamite, etc.) and arsenal of deadly weapons (dual guns, long-range carbine, etc.). Take advantage of each of their strengths and join in the fiercest fights imaginable
Never Before Seen Western Experience – Experience the iconic settings full of outlaws – the West before it was tamed. The McCall brothers face a renegade Apache Chief, a greedy Mexican bandit, a vindictive Colonel, and others, all driven by greed with moral disregard. Enjoy a wide variety of situations, using horses, canoes and wagons to explore the vast natural landscapes of the fabled Wild West and its legendary period