Disco Elysium is a fantastic one. There are an insane amount of choices that shape how you go about the investigation of the hanged man and ultimately what happens beyond that investigation. Choices of who to side with, how to side (openly or playing multiple sides, etc.), choices that ultimately define what kind of detective you are (by-the-book boring, superstar douchebag, violent tough guy, Sherlock Holmes-esque genius, etc., including my favorite: Twin Peaks Lynchian detective that bases their decisions off of dreams, intuition and imaginary conversations with the dead body), and even how failing or succeeding at something can lead to progress in very different ways. If you fail to hit that person you tried to punch, or miss that shot with your gun, or utterly fail to convince someone to help you, you progress through in very different ways so that failing your way to the truth is just as satisfying and entertaining as succeeding your checks to get there.

And of course Fallout: New Vegas. Whether you choose to support the New California Republic, Caesar's Legion, Mr. House, or a truly independent New Vegas, none of them are perfect. Each succeeds in an ideal society in some ways but completely fails at others, leaving you to decide which imperfect system you feel is the right one for the world instead of shoving an obvious answer in your face.