S = Superb. Games that — for my personal tastes — are the best the genre has to offer. Combat, tone, map design, exploration are all excellent.

A = Amazing. Games that excel in multiple areas or stand out for exceptional ideas, playstyles, or systems.

B = Better Than Most. Games that are good for multiple reasons, be it their maps, exploration, combat, or a combination.

C = Competent. Games that I would consider competently-made, but don't stand out from the crowd. A hefty mix of positives & negatives.

D = Does Some Things Right. Games that did a small number of things that kept me playing until the end, but often had considerable issues.

F = Didn't Finish. Games that, for one or more reasons (not always negative), I didn't finish.

Games that I've played parts of in Early Access. Tier placement TBD.

Games that are out but, for one or more reasons, I haven't played. (Yet?)

Games which are essentially dead: no longer in production or likely never coming out.