What the Fuser does
The Fuser combines ores into higher-tier Mega Ores. LDPlayer's guide is the cleanest public description. Exact Fuser pricing is not published — treat this as a feature rather than a fixed table.
August 17 update scope
The August 17 patch introduced the Fuser, a 51-pet roster (count per YouTube title only), and Totem objects on upper floors. The PETFUSION code (Devil's Growth Gem) was released to mark the patch.
When to fuse
Fuse ores that are already at a high mutation (Void or better) to preserve the multiplier. Fusing Common-tier ores usually produces weak Mega Ores.
Sell optimizer use case
The sell optimizer compares holding Mega Ores versus selling raw crates. It also flags when a higher-tier Coating pays for itself against the next mutation step.
Guide Media
Video References