Observed arrival · 2026-11-03
Probably Stolen’s Unofficial Chemistry Calculator
A free fan-made calculator for planning recipes, machine modules, purity grades, yields, and sale prices in the game Probably Stolen.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Probably Stolen players planning lab batches
- Worth noticing
- The FAQ says its figures come from community wikis and have not yet been tested in-game.
Field notes
The page lays out a three-step workflow: select a product, set module counts across four machines, then inspect estimated purity, grade, units, and value. It links individual recipe pages and says batch settings can be shared by copying a link. Its FAQ explains that some inputs are omitted for lack of reliable data, while the displayed values come from community wikis and may not yet match in-game results.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
†AdsAdvertising visible
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue