Here is the full list of all 23 OnlyFuck - there are RuRu's Adventures achievements.
Reach 500 Followers
Reach 1000 Followers
Close your first account and get some Kudos
Complete twelveth week
Reach 50 Followers
Reach 100 Followers
Completer eighth week
Complete nineth week
Complete tenth week
Complete eleventh week
Complete fourth week
Complete fifth week
Complete sixth week
Complete seventh week
Complete second week
Complete third week
Answer 1 direct message
Pick a Strategy
Get $1000 in bank
Complete your first Lewdoku
Publish your first video
Complete first week
Create your first OnlyFuck account