Sugar Lumps are an in-game secondary currency which is available after ascending for the first time. Sugar Lumps will grow below the Stats button. Sugar Lumps will mature after 20 hours, ripen after 23 hours, and fall after 24 hours, harvesting itself, and can mature, ripen, and fall while the game is closed. As the Sugar Lump matures, its size and appearance will change over time. Harvesting a Sugar Lump when it is mature but not ripe will result in a 50% chance to not get anything. Once a Sugar Lump is harvested, another one will begin growing immediately. The time required for Sugar Lumps to mature and ripen can be reduced with some Heavenly upgrades and the Rigidel spirit. Sugar Lumps are used to level up buildings and refill magic and worship swaps. There is a rare chance to grow a Bifurcated Sugar Lump, which has a small chance of giving you two Sugar Lumps when harvested. You can also get a single Sugar Lump from a Golden Cookie from the "Sweet" effect.
Each time a building is leveled up, it receives a permanent 1% boost in cookie production, and the price increases by one Sugar Lump. You can also use a single sugar lump to refill all 3 of your worship swaps or refill 100 units of your magic meter. Leveling up Wizard Towers and Temples will unlock the Grimoire and Pantheon minigames, respectively.
During the Grandmapocalypse, when the Grandmatriarchs are angered, Meaty Sugar Lumps will grow instead, which grant between 0 and 2 Sugar Lumps, though the Sugar Lump currently growing is not affected. Sugar Lump growth is affected by the system clock, similar to offline production. Turning the clock ahead will give you Sugar Lumps, and turning the clock back will increase time before the next Sugar Lump is available.