My strong advice: do not play the normal "base" version. On my system, it would crash every few minutes until I got near the end-game then it would crash two or three minutes into each mission (never on the Avenger screen, though, oddly enough). I finally gave up, not realizing that War of the Chosen is more than a mere DLC and is actually a remake of the entire game. So before giving up entirely, I switched to the WoTC DLC and it was perfectly smooth and never crashed even once! Don't judge me, I used all kinds of cheat codes (because I am addicted to the "God Game" aspect) and it shortened the game considerably, but it is one of the most fun games I have ever played, with some of the best storytelling (if a bit vague in places) as a backdrop. Strongly recommend if you like challenging strategy (i.e., without cheat codes) and a good immersive feeling.
