That Time I Got Reincarnated as a Slime Wiki is an unofficial, community-editable encyclopedia dedicated to the Japanese fantasy series That Time I Got Reincarnated as a Slime. Centered primarily on the published novels, the wiki brings together information about the series’ characters, abilities, nations, organizations, species, locations, terminology, and fictional world. It also covers the story’s history and events through chronological timelines, and notes that its articles may contain spoilers for material not yet adapted into animation.

Visitors can browse character and skill lists, explore setting-related entries, compare known existence values, and test their knowledge with quizzes about characters, abilities, and history. The site highlights featured characters and skills, popular and recently updated articles, and newly created pages to help readers discover content. Fans can also contribute by creating articles, improving existing entries, or using the site’s templates and editing guides. By combining reference articles, discovery tools, and community participation, the wiki serves as a resource for readers seeking to explore the series in greater depth.