It's a GM assistant like AxisII. It lacks tons of features (and it will continue to lack them since AxisII has really a lot of features), so it's intended to be used together with AxisII.
The need of a new tool arises because of AxisII limitations.
To this day, Leviathan:
- is A LOT faster than AxisII at loading the scripts
- can be resized
- has Items and NPCs tabs
- can read new animations (stored inside AnimationFrame*.uop) (and doesn't crash when trying opening them, like sometimes happens with AxisII)
It's cross-platform (compiled and tested on Windows and Linux) and open source.
https://github.com/cbnolok/Leviathan
Releases: https://github.com/cbnolok/Leviathan/releases


Nolok tried to help but even debugger cant find why. 
i found the line where it's crashing but i need to investigate why it's happening there