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