I have made an attempt to import the models from your last game "Pandora" into gladius.
I have had success with getting in the mesh files and textures:
https://drive.google.com/file/d/17UsINq ... sp=sharing
the problem comes when i try to use the animations:
https://drive.google.com/file/d/1z6d1Xh ... sp=sharing
I have spoken to your modeller and animator Sohei. and he says its because they changed the animation system.
Speaking to Rok he said that he would be open to discussing potentially releasing the Pandora 3ds max files but to make a request on the slitherine forum. i hope i got the right section

Can i request that we open this discussion, if your not willing to publicly release them im happy to sign something to say i wont share the original files.
Use case: Im the author of the "Neutral Pack" mod, and id like to add to the creatures of gladius with the pandoran neutral units.