The files include both 6mm & 15mm scales. The 15mm stuff is pretty close in size to the Mechwarrior & Dark Age Clix game. 15mm games I’ve seen people mention using them with are Gruntz, Horizon Wars, Tomorrow’s War along with adapted versions of Alpha Strike.
I edited the posts on public view, I forgot that Patreon viewers only is the default setting.
Here's a couple shots of the 6mm versions alongside the 15mm counterparts along with an old battletech model.
Here's the mech for December: BlackFrost Cougar