Back to games
Two characters and a blue slime are by a pond in the forest of Isekai Slime World.
RPG

Isekai Slime World

By Pumidol Leelerdsakulvong

Visit game website

Isekai Slime World by Pumidol Leelerdsakulvong is an MMORPG where the creator references the atmosphere of Ragnarok Classic, Digimon World, and Tree of Savior. Players take on the role of a slime keeper after being transported to another world.

Game features
RPGMassively MultiplayerFantasy

Isekai Slime World by Pumidol Leelerdsakulvong is an MMORPG where the creator references the atmosphere of Ragnarok Classic, Digimon World, and Tree of Savior. Players take on the role of a slime keeper after being transported to another world.

Two characters and a blue slime are by a pond in the forest of Isekai Slime World.
Forest scene and slime from the development post of Isekai Slime World by Pumidol Leelerdsakulvong on September 22, 2026

The developer says players can choose to spend time fishing, listening to lo-fi music, hunting bosses, and adventuring to save the world, while also mentioning Castle in the Sky with 99 floors.

Posted on September 25, 2026, announcing the Alpha Test plan for Saturday, September 26 at 13:00. Subsequently, the creator published the Isekai Slime World website link in a comment, inviting participation in Alpha Test 1.

In a post about development, the creator explains dividing the game into parts for AI assistance, including writing user stories and testing before coding, using the Tamer and slime systems of this game as examples.

The website checked on October 10, 2026, has a login and account creation page with email and password or Google options, and language switching between English, Japanese, and Thai.

Creators and Origins

Pumidol Leelerdsakulvong · Original Post · Original comment · Game website · Illustration source

This game is hosted on its creator’s website. gameslash collects information and links to help you discover games.

View source