TS!Underswap

An unofficial fan-game of Toby Fox's Undertale. Explore a re-imagined world based on the premise of swapping character roles, and adding original content, to create new scenarios.

TBA

Adventure Indie Puzzle Role-playing (RPG) Turn-based strategy (TBS) Comedy Drama Fantasy

TS!Underswap is an adventure developed by Team Switched on Android, Linux, Mac and PC (Microsoft Windows).

Verified 27 Sep 2026 Sources: IGDB

What TS!Underswap is

TS!Underswap was developed by Team Switched. It is available on Android, Linux, Mac and PC (Microsoft Windows). It runs on GameMaker Studio 2.

The premise, in the publisher's words

An unofficial fan-game of Toby Fox's Undertale. Explore a re-imagined world based on the premise of swapping character roles, and adding original content, to create new scenarios.

Description from the publisher · source

How it plays

It is played from a bird view / isometric perspective. Its themes are comedy, drama and fantasy. It is a single-player game with no multiplayer component.