Full Neo Mr.Tenna Boss Fight for Undertale: The Secrets of the Core

New Maps in the development of the Project.

just for some peoples info this project had started development on June 26th 2025 and so far we have this much of the project done. we will continue to make more updates to the gamejolt page regarding development of this fangame.

The first look at the Squeal to SECT0R: Storms

Release date/Opening to SECT0R: Storms

SECT0R: Echos Demo is almost ready. I will be releasing a WIP build to some people. 4 Days after a full on out Demo will be released for the game. Thank you for your patience and the support guys.

Demo releasing on June 14th 2025

Update on the Undertale: TSOTC battle system. Also sorry about the mic quality i was not home at the time.

W.I.P: First look at the first boss fight.

Preview of The Ruins for Undertale: The Secrets of the Core