Full list of all 18 Steam Engine Simulator achievements. It takes around 20-25 hours to unlock all of the achievements in the base game on Windows.
The base game contains 16 achievements, and there is 1 DLC pack containing 2 achievements.
All is forgiven if you appease the algorithm (or just say you're sorry).
Run the engine for 10000 revolutions.
Reach 650 rpm.
Boil 25 ml of water.
Run the engine for 1000 revolutions.
Run the engine for 100 revolutions.
There's only so much poking a developer can take.
Be questioned by the void.
Click all links.
Use the steam whistle.
Run the engine for 100000 revolutions.
Run the engine for 1000000 revolutions.
Boil 100 ml of water.
Boil 1 l of water.
Boil 10 l of water.
Reach 3500 rpm.
Generate a 15 inHg vacuum in the boiler.
Generate a 28 inHg vacuum in the boiler.