Mafia III, due out later this year on consoles and PC, has a few interesting things going for it. It's a crime story set in a fictionalized version of 1960s New Orleans. It has a black protagonist. Here's a less obvious distinctive trait. its open world can be changed.
Increasingly, the Steam mobile app is vital if you want to make optimal use of Steam's features. Using the Steam marketplace to buy and sell items is a horrible chore without it, among other things. And yet, for years it's been restricted to iOS and Android. Thankfully, Valve's finally changed that.