Skip to the bottom for TL:DR on the trick to getting this solo.
This is one of the worst achievements I have seen as it is almost impossible to get legit. You have to basically trick 82 people into adding you as a family member. Joining someones family does not inherit their family, which makes no sense as all family members should be related.
There is a workaround for this though. On the Kongregate website, you can load this game in your browser. Use an incognito or private window in Firefox (Chrome failed to load the game due to a javascript error). What you do is load the game, click through all the pop ups until the tutorial begins. In the bottom left, click Skip Tutorial. Now click Home to go to the options and select Family on the right side. Add your main games family code here (found within the same menu on your steam version) and once it connects with your family, close the browser window and open a new one to load the game up again.
Loading multiple browser pages on the game doesn't work well. Most of the time, they were already connected to my family. I even tried in 2 private windows and somehow they were also already connected. So doing it one at a time worked best for me.
TL:DR
- In an incognito or Private browser window, go to:
https://www.kongregate.com/games/Tamasenco/wild-west-saga?ac...- Load the game
- Skip the tutorial in the bottom left
- Under Home > Family, add your family code
- Close window and repeat.