So, now it starts, but my computer is not very strong. so it lags a lot (also got a problem when the sound of a car screeching to a halt kept going unless I stopped playing)
Should I try with the 32 bit version if it runs better?
I don't think the 32 bit version would make a huge difference. It requires a fairly modern graphics card to run well. I didn't spend much time on optimization given the scope of the Jam.