Thank you for sharing this. This brings so many memories to me, as it was my first professional gig! I've put all my time into it, we were so fast back then, we've got the first level working on PC for two-three weeks. It took much more (7-8 months) to finish. At some point there was a deal whether we would allow load/save from any point in the game, but instead we proposed to include the VR Missions instead of it.

Early on due to my porting libraries I've introduced a severe bug, where the internal timer was 10x (or 100x?) faster, causing issues for loading/saving, this was resolved just weeks before shipping thanks to the other awesome Ukraine programmer. It was also a lesson for me to be less cocky, and take the blame sometimes.