Once you have the item in your inventory:
Joric wrote in his ledger. But this time, the words did not appear in gold. They appeared in soft, silver-green ink, as if growing from the page:
They went on. Elara set a single piston to lift a cup of tea. Not fast. Not powerful. Just steady . The piston rose one millimeter per second. The tea did not slosh. The cup did not rattle. At the top, the piston held for ten seconds, then descended just as slowly. Achievement unlocked: Move a mass of one kilogram at constant velocity with less than one decibel of audible mechanical noise.
The Lovely Piston is a drop from the main boss of the Steam Facility, often called the , Prototype , or Master Engineer .
: Craft a Carved Pumpkin using a pumpkin and scissors. Equip the pumpkin head on your character, select the Ritual Background, and complete the piston scene to unlock the Jack-o'-Lantern Girl.
Here is a comprehensive guide to unlocking the Lovely Piston.
Create a machine whose only purpose is to be lovely, then let it be lovely where you cannot see.
The text in Joric’s ledger filled itself in: Complete a flawless start-up cycle without stutter or squeak.
For a step-by-step visual on unlocking the Pumpkin Girl and managing the crafting table: Lovely Craft Piston Trap: Unlocking the Jack-o-Lantern Girl YouTube• Mar 28, 2026 Lovely Craft Piston Trap: Unlocking the Jack-o-Lantern Girl
While the game is in active development with a rolling achievement system, players can currently target several "secret" and character-specific milestones.