Wariopedia is a wiki covering the Wario franchise and all related media. It started out as a mini-wiki on Mariopedia, where it was founded by Bawitdaba in September 2022. In November 2022, Bawitdaba suggested to Mariopedia's community that both Wariopedia and Yoshipedia be made into full wikis, and the community unanimously agreed. He had thought of this in response to Miraheze experiencing disk failure on db141, resulting in a fraction of the wikis to experience downtime for about a month and a half, including Mariopedia, so he wanted to make light out of a bad situation.
Following the creation of Yoshipedia, Wariopedia had also been split off into its own wiki about ten days later. However, both Wariopedia and Yoshipedia were affected by a subsequent db141 error some time in December.
On December 31, 2022, both Wariopedia and Yoshipedia were recreated, just in time for 2023.