Ultimate Builder
“Ultimate Builder” is an achievement in Loot Grinder, the free medieval idle clicker. Own a Massive Castle.
How to unlock it
Own a Massive Castle. Buy more buildings from the shop — every purchase counts toward your building totals.
Reward
Unlocking Ultimate Builder permanently boosts your economy by +5% loot per second. Achievement bonuses stack, so each one you earn multiplies your kingdom’s income for the rest of the run.
Why it’s useful
Building milestones nudge you toward the purchases that drive passive income anyway, and the +5% on top makes every expansion of your kingdom pay double.