Having completed the most difficult achievements for a couple of games, I started wondering how difficult the worst achievements can be. One well-defined measure for difficulty of an achievement is its rareness. Sadly, I don’t know how to find global achievement stats for all Steam games.
What I want to know is:
What is the most rare single player achievement on Steam, in terms of
- individual players?
- percentage of players?
As any answer would eventually become outdated, I’m not asking that question per se. Instead, I would like to know how the rarest achievements can be found.
A good answer, then, depicts a method for finding the rarest achievements on Steam.
Answer
For the rarity of any Steam Achievement I recommend to use this toplist on AStats:
http://astats.astats.nl/astats/TopListAchievements.php?DisplayType=1
This community of Achievement Hunters is strictly moderated and reflects a good portion of Steam’s user base. Cheaters are banned regularly and on sight.
Attribution
Source : Link , Question Author : StackExchange saddens dancek , Answer Author : BadSnowflake