"Not sure if this is still the case but years ago I found I could not play Killing Floor 2, game wouldn't launch, fixed it following a guide.

Months later I launched Dynasty Warriors 8, game wouldn't launch despite having ran fine on the same computer before with 0 issues. Did the same but opposite thing described in the Killing Floor 2 guide. Then the game launched.

So this could be something to look out for if the game doesn't launch."