Vault, Ore Aging, and Reroll Machine

How the Vault Prints Money

Equipped vault ores generate cash per second even while you are offline. Your goal is not to fill every slot with whatever you grabbed - it is to park the highest merged income possible and protect it from stealers.

Expand vault capacity when mid-tier merges are bouncing out of inventory. Empty slots earn nothing; junk slots earn almost nothing.

Ore Aging Strategy

Ore Aging means ores gain value the longer they sit. That creates a real decision: sell now for safe upgrade cash, or hold for a larger payout. Early game, sell Stone/Iron instantly. Mid game, age Gold/Jade/Amber pairs before selling extras. Late game, almost never sell S-tier - age and merge instead.

Aging pairs beautifully with offline play. Log out with your best shiny merges equipped so time away works for you.

Update 5.0 Reroll Machine

The Reroll Machine lets you spend resources to reroll an ore's weight profile for a chance at much higher money-per-second. It is high-risk, high-reward - use it on mid-tier ores you can afford to gamble, not on your only Diamond.

Best practice: reroll after a rebirth recovery when you have surplus cash but before your next big weight purchase. A lucky reroll can fund several upgrades at once.

Chests and Fossil Freebies

Cave chests (Small through Royal) often drop mergeable rares. Grab them only when oxygen covers the climb. At base, check the Fossil station every login for a free ore or gem head start before diving.

Vault Rules of Thumb

• Never vault Stone Ore
• Prefer shiny/merged versions over singles
• Protect high vault value with base shields in Emerald Abyss+
• Age extras you plan to sell; equip forever-holds immediately
• Reroll surplus mid-tiers, never irreplaceable S-tiers