Invest cells in the Legendary Forge after a boss
Blacksmith passage after a boss biome during a normal run.
- Reach a boss and continue to the following passage.
- Carry cells to the Blacksmith.
- Have a Legendary Forge upgrade available for investment.
Turn ordinary-run cells into persistent improvements to future gear quality.
Blacksmith passage after a boss biome during a normal run.
The Blacksmith’s Legendary Forge uses cells to improve the chance that future gear drops at higher quality. This is permanent progression, so a purchase supports many later runs rather than awarding a specific item immediately. Reach a Blacksmith passage after a boss, review the upgrade available there, and invest cells before continuing. The Forge is a separate progression target from paying the Collector for a particular blueprint.
Repeatable while Forge upgrades are available. Purchases persist, but each upgrade is a limited progression step rather than an endlessly repeatable reward.
Stop investing when the next available Forge progression is complete or a desired Collector blueprint becomes the better use of cells.
Blacksmith passage after a boss biome during a normal run.
More guides for gathering materials and making progress.
Turn cells earned during runs into permanent gear and account progression.
Use difficulty-gated rooms to find extra cells and useful route rewards.
Complete a one-time progression unlock that opens access to the Daily Challenge and its separate blueprint milestones.
Collect mode-contained cells and convert them into permanent progression before leaving.