: In Flashpoint, use the curation or search tools to find Poptropica. Many guides recommend importing the AS2 zip file to ensure the classic islands function correctly.
I can find specific step-by-step instructions for your operating system. Old Island Directory As2.zip
The file contains the assets for the era of Poptropica. : In Flashpoint, use the curation or search
If you prefer an official route, the Poptropica Steam Version includes a selection of older islands, though it does not contain the full library available via the Flashpoint AS2 curation. : In Flashpoint