Golden Key
Golden Key is a click upgrade in Loot Grinder, the free medieval idle clicker.
What it does
It multiplies your loot-per-click by 2×. (Double click yield.)
Cost
It costs 1K loot and is a one-time purchase.
Why it’s useful
A manual tap is worth the click ladder plus a slice of your passive LPS, so stronger clicks keep active play rewarding even deep into a run.