Golden Chest Key costs: ordinary keys, Bloom and energy
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One Golden Chest Key costs 10 Chest Keys and 25 Bloom, plus 10 energy at Project Station Lv.3. If you craft all ten ordinary keys from scratch, add 1,000 Scrap Bits and 50 energy before the final conversion.
One golden key from raw key materials
| Stage | Payment | Energy |
|---|---|---|
| Craft 10 ordinary keys | 1,000 Scrap Bits | 50 total |
| Convert to 1 Golden Chest Key | Those 10 keys, 25 Bloom | 10 |
| Complete direct chain | 1,000 Scrap Bits, 25 Bloom | 60 total |
The 60 energy is cumulative spending across eleven actions. The largest individual action costs 10, so it does not require a 60-capacity battery if you recharge between crafts.
Existing keys reduce the first stage. With four keys already owned, six additional keys cost 600 Scrap Bits and 30 energy, followed by the same 25 Bloom and 10-energy conversion.
Ordinary versus golden chests
A normal Treasure Hunt chest uses three ordinary keys. A golden chest uses one Golden Chest Key. The reward pools differ, so the ordinary-key exchange does not mean that a golden chest guarantees a specific pet fragment or outfit.
The Treasure Hunt guide explains event areas, tool requirements and the district-dependent fragment pools. Prepare the type of key for the chest you intend to open.
Other key supplies
Ordinary keys can come from quests, gathering, events and Cella’s shop as well as crafting. Count those owned keys before multiplying Scrap Bits. Use the crafting planner for the final recipe and subtract inventory from each direct ingredient; expanding ordinary keys into Scrap Bits is a separate crafting stage.
