We reached 500k quests. It says that all who participated will get a new pet slot later in the week. My questions are what counts as participating. Does just doing one of the listed quests during the quest a thon qualify you as a participant or did I miss something? Also lets say your gold account runs out before you can use the new pet slot and you already have 10 pets, do you need a new GA to use the free pet slot?

Thanks for the help... Sorry if these questions have already been asked. :(

Oh! And an unrelated question but equally important. How do you get a nostalgic pet? What item must be used?

Yes, you need a GA to use the free pet slot if you're using the GA perk of +5 slots

Yes, only one quest counts

You need the corresponding nostalgic instructions (like ), then Vanya will ask you for other items for his quest, and give you a toy in return (). You need the toy + to turn your pet Nostalgic. There's more detailed instructions in the FAQ

Thank you for your help.