In December 2023, a Discord user posing as a representative of the developers of Poptropica stated on the server for the fan website Poptropica Help Blog that the game would be shutting down after December 29th. The account first appeared on the server in 2022, and while the blog did not do a complete screening to ensure the account was officially associated with the developers, it was eventually given the role of "Poptropica Creator" after they determined it was official based on its posting history. Many players initially believed the announcement was legitimate after Poptropica suddenly closed membership registrations earlier in the month. Shortly after the shut down announcement, the official Poptropica Twitter and Instagram accounts decried the Discord account as being unofficial, and assured players that the game would still be playable after December 29th, with all memberships up to the end of the year being available for free. The blog posted an apology for perpetuating the rumors the following day, but within the next year, the validity of the rumors being false would come into question.

On January 18, 2024, possibly in response to the rumors the prior month, Coolmath Games revealed that they had been in talks with the team behind Poptropica to host the game on their site exclusively, with the game remaining playable on Steam and mobile devices. This would later be confirmed by Poptropica themselves through a pop-up message on their website shortly afterwards. Notably, in a blog post expanding upon the news, Coolmath Games revealed that "the original Poptropica decided to wind down", something that had never been officially stated by Poptropica themselves. This would suggest that there was some degree of truth to the initial hoax as well as various rumors.