There is no reliable way to get free credits. There are many sotries, fake offers, scammers, etc., that will promise to give you free credits but none are reliable. Also, getting free credits is illegal and if Sulake finds out you will get in trouble. Never give out your account name and/or password to anyone no matter what they promise you.
Earn Credits :)
Complete Islands you get 100 credits for each island
If you start off with no credits, then you have to buy the credits. I think $20 gets you 2000 credits. If you already have, let's say, 500 credits, than you have to buy more credits, also. You would need 1,500 credits, and 1,500c=$15.00
The only way to get free Poptropica Credits is to complete islands (or the three games in the Store). You also get 25 credits for signing up. Otherwise, adults can purchase credits or memberships through the store.
fb credits
unfortunaltly u cant get free facebook credits without doing quiz's or videos
You can use them to buy songs without paying cash. 100 credits equals 2 songs.
You can enter someone else's Multiverse room by invitation, at no cost to you. You can get multiverse with no credits if you are a Poptropica member. Paid monthly members can use anything in the store without spending credits. But they cannot keep the items used if they stop their membership.
You just don't.
If you solve them you get 100 for every island. You can also finish the games in the store for more credits.
Impossible
Typically, the average student load for colleges and universities that operate on a regular two semester academic year, is 15 credits per semester. This would mean 30 credits per year, without taking summer or interim sessions. Some students take more, while others less.