I thought it was an outdated driver issue on one of my systems but on my other system the driver is up to date. Albeit, it's an on-board chip-set. I've tested the 32-bit version and all of the mechanics work well. It's just the missing elements. My guess would be both of my systems don't support the advance graphics capabilities(shaders,etc). Which by watching your video seem to be low but may be using advanced shader and vertex pass-through operations that both of my systems don't support. And that's an old bean programmer guess based on playing other UNITY driven games on both systems which have worked out great.
Are there any compiler options that UNITY uses that deal with advance graphics,etc? The reason I ask is because I generally don't use UNITY. I have experience with 3D programs and have made 3D games. Just haven't used UNITY as a main stream developer tool.
I also am bringing this to light with you because I see your game is in the alpha stage and it's probably just my systems. However, I would hate to see you release this game as a final package and have other people bringing mysterious issues to your door about this and that. It's a pretty fun concept to explore and in my view a fun game. It deals in specific elements that are interesting..
Pete