Yeah that's the only older build level I could get to function with the V037 engine without having to change too much. There are other levels hidden away in the "Original Unmodified Level Files" folder which can be hacked to work with V037 engine if anyone has the time to do it. I've already reconstructed them for AXSX and got a look at even the oldest V001 engine build level which apparently was only a camera flythrew according to Chris Senn. I really hope this release will inspire people to get their hands dirty and share what they find! its all there for the taking!, Its more fun if you guys dig and share findings than if I post everything. Here are some of the level that are included in release pack 3, The ones that are not playable within V037: LEVEL01 found in the MYRSRC folder. also Tunnel found in the same folder. Level01F in RSRC02 LEVEL02 in RSRC05 according to the .def file, there are bad spheres and good spheres.