About

The Library · A Screwcap Games, LLC property · Updated 25 August 2026

The Library is a paper-trading game for the money left over after the month is covered. Five ways of deciding, run against the same fifteen years, with the arithmetic shown rather than summarised.

The five are not five risk levels. They are five different jobs money can be asked to do, which is why they are bands rather than shades of one idea — and it is the reason most financial games teach a lesson that does not transfer.

It is not finished. What is live at thelibrary.quest right now is a holding page; the playable 0.2 slice is still on a branch. Treat any figure you see anywhere in it as illustrative. When there is something worth standing behind, this page will stop saying so.

How it pays for itself

Right now it doesn’t — this one is free, carries no advertising, and sets no tracking cookies. If that changes, the Privacy Policy will say so before you notice it, naming whatever we added.

Who makes it

The Library is made by Screwcap Games, LLC, a small independent studio in Walworth County, Wisconsin. We build games about judgment under uncertainty — monetary policy, commodity markets, household finance — and a few card and domino games that are just games. The rest of the catalogue is at Screwcap.Games.

Bugs, corrections, licensing, or an argument about the rules: play@screwcapholdings.com. Corrections to the data or the history get answered first — if something here is factually wrong, we want to know before a player does.