› Cathedral Builder

what is Cathedral Builder?

Build a cathedral within a century by mining and crafting stones in this 13th-century themed incremental game.

Created for the 2023 JS13K game jam with a 13 KB size limit, this game challenges you to construct a cathedral in under 100 years. Progress by digging rocks, cutting stones, and gradually expanding your structure.

It sits in the Idle / Prestige / Numbers / Management / Strategy corner of the genre. Like most idle games it runs on a simple loop — earn, reinvest, automate — but the depth is in how long that loop keeps unfolding. Expect to check in, make a few decisions, and watch the numbers climb whether you're at the keyboard or not.

New to incrementals? Read our beginner's guide first, or just hit play — these games are built to teach themselves.