Without saving. Disappointing for sure as I was looking forward to playing the game as much as possible with the prototype but I have limited time in one session and would hardly make any progress before having to exit the game and lose it all. At least I attempted to save after only about 10 - 15 minutes.

Any fixes that I could attempt?

Btw, I have tried to use quick save, saving a new file, and overwriting the 'Mega City' save that comes with the prototype. All of which cause the same crash.

That's a first for me. I suppose the game in unable to write files on your computer for whatever reason. And if that's the case, you will not be notified of any errors either. If you have any files in errorLogs/ please send them my way. If not, what OS are you on? Perhaps you can give write access to the game somehow. Maybe run the game as administrator?

You were right, no error logs. However, I was able to save once I ran the game as administrator. Thanks!