The stealth genre has grown and morphed since it came to prominence in the late 1990s with Thief. In fact, it may be fair to say that most stealth games now are not fully about stealth — most are immersive-sim-adjacent games that give you the option to be stealthy. How you play through a level, and how you approach every encounter, is up to you. So, considering that evolution, whittling the best stealth games down to nine entries was no small feat. But we attempted the task nonetheless: The list below is a compilation of games that skew toward the “pure” side of the stealth genre, but it also includes…