Today people tend to claim a movie is a masterpiece and cinematic triumph or it is a total disaster, the worst movie I ever watched etc. The Midnight Man imho does not belong in either category, it is a small horror movie with a story-line based on a game that evokes a dark, evil entity and the price of the game is one's life and if one loses the game you get a fine cruel death. (Well, some dark souls could rightfully argue that a cruel death is still a kind of good reward, because, you know, who wants to die a common, total boring death!?)
So, in short, for sure there is nothing new in the western front, but what we get are decent actors (Lin Shaye, Robert Englund, also the young actors do not disappoint) and a good production value with some nice value of gore and splatter and a good, dark atmosphere and a very bad guy.
Yes, this movie is no Oscar material or made to be someday called cvlt, but The Midnight Man is a pro made movie and imo for the aficionado of horror a good snack in-between. My rate 5, maybe a 6.