BlackNerdMagic’s review published on Letterboxd:
Elaborate real world games turn an investment banker’s world into a tailspin of unfortunate circumstances. Stumping any bit of normal outcome, this objective of the game is less clear while the stakes grow deadlier and intense. Psychologically taxing in the way of Fincher throwing more and more diversions to make sure he has the undivided attention of his audience. The mark of great mystery leaves the viewer confused but yet begging to see what the climax will provide. Hard to differentiate between what is real and what is fake; is this really a game or a matter of inevitable demise? Once you see the finish line, the element of surprise is lost greatly which hurts any plan for a future rewatch. If I had to sum up this film without spoiling, think of the most unassuming scheme you could pull on someone and then double the mischief by a thousand.