In collection = Bought/Redeemed the game
Played = I've played the game at least once
Rated = I've played the game and have an opinion about it.
I don't necessarily own the game in order to have an opinion about it.

I rate game according my own personal opinion, so I don't take into account the historic relevance of the game.

I always try to apply the normal/gaussian distribution, so marks like 3 = decent, 2.5 = sufficient, 2 = bad.

Game time: https://howlongtobeat.com/user/unwound45