I'm a sucker for idle/clicker games, and I had a blast playing your game. :)
I think a bit of number tweaking could make the pacing feel better, as the full playthrough was just a little too long.
The one thing that felt a bit frustrating was that money generation is tied to HP, since every money machine reduces it. It felt like HP was always lagging behind
For future versions, you could maybe add a way to automatically feed the hamsters, and perhaps let players buy upgraded versions of the machines directly instead of purchasing each tier individually.
Loved it!