Guess the price
You are told what a commodity is, not its name or price. Move the slider to guess its current benchmark price, one of 46 tracked on this site. Closer guesses score more; the scale is logarithmic, so guessing within double or half the real price still scores well, but the game rewards knowing roughly the right order of magnitude, not the exact number.
Prices are the latest monthly average benchmark quote for each commodity's primary series (World Bank Pink Sheet or IMF Primary Commodity Price System); see every price. No score is stored anywhere; refreshing starts over. Prices are not investment advice.