These models were originally made by Dwere, and then sometimes worked on by some other people in the community. Versions of them are included in this, and Arcane Dimensions, and Alkaline. One of the cool things about them is you can turn on full model interpolation and they animations still play properly. Quakespasm and forks: r_lerpmodels 2 JoeQuake: gl_interpolate_animation 2 The normal value is 1. Also, JoeQuake is a nice port, with some great quality of life features. If you wanna play around with it, you can install it to the same folder as Ironwail or vkQuake, since they don't save configs on the same files.