Algodoo

true steam engine (or at least a pneumatic pressure engine)
a little leaky, but self-starting at all points, and only uses thyme
for steam generation. because I wanted to show off all those other
joiks who've made non-steam "steam" engines

key [ENTER] - toggles steam on and off

* V.2
added counterweight to output shaft, and increased steam output in
an attempt at faster/smoother operation
removed 8 unused idler wheels from cylinders