Thanks to everyone for your kind comments. It has somewhat reinvigorated me to continue my work on the project.
As far as uploading the .cap file, in its current state it would likely be useless due to a lack of detailed (Or any, really) documentation. I'll try to work on that so everyone can have a decent shot at understanding whats under the hood. (I'll upload the current undocumented version if anyone is feeling up to the challenge. I hope you understand Rotation Matrices and such if you do. )
That's awesome! I guess I'll have to try fixing the yaw offsetting and stuff. I should probably add camera transformations as well - it'd be easier to move the camera around than to move all the boxes, I guess.
Native camera transformations would likely make about two thirds of my code obsolete (removes the need for the Rotation Matrix, and Pitch, Yaw, Roll input via the Rotation Matrix), so that would be ideal.
Native Z emulation for 2D objects would make the other third also obsolete.
Those two changes, as well as fixing the Yaw relativity issue, would allow everyone to achieve what I have, with about 10 times less code. I'm not sure how time feasible it is to do so, being that Construct is primarily 2D (at least until version 1.00), but I'm definitely willing to help out in any way I can if you wanted to try to get it in before version 1.00.