Chest Keys Guide
Chest keys in MementoMori unlock sealed chests, which will give you useful items for your playthrough. Read on to find out where you can get chest keys, as well as what items you can get once you unlock sealed chests!
List of Contents
Chest Keys Guide
Collect Chest Keys From Daily Missions, Events
The first way to get chest keys is to complete Daily Missions, which give out Bronze, Silver, and Gold Chest Keys as you complete more of them. Sometimes, some events also give out chest keys as rewards.
Buy Chest Keys From the Shop
If you want even more Chest Keys, another way to get them is to buy Sealed Key Gifts from the Special Shop. These are sold for 1,560 Diamonds and contain 10 Bronze Keys, 20 Silver Keys, 50 Gold Keys, 16 Tickets of Infinity, and 1 Kindling Orb equivalent to an hour's worth of auto battles.
You can also buy keys through the Battle Coins section of the shop, where keys are sold in packs of 5. Bronze Keys cost 1,300 Battle Coins, Silver Keys cost 2,500 Battle Coins, and Gold Keys cost 5,000 Battle Coins.
How to Collect and Use Battle Coins
Use Chest Keys in the Item Box
To use Chest Keys, simply go to the 'Consumables' tab in your Item Box. Make sure you have the corresponding chest for the key you're going to use. Once you've selected your key (or the Sealed Chest), decide how many chests you'll open.
You will then get a random reward, which is drawn from a pool of potential items that change depending on what chest you're opening.
Sealed Chest Item Rates
Bronze Sealed Chest Item Rates
| Item | Rate |
|---|---|
 Upgrade Water x 20 | 10.0000% |
| Upgrade Water x 40 | 10.0000% |
 Dark Perfume x 1 | 15.0000% |
 Mystery Rune Lv. 1 (x 1) | 8.0000% |
| Mystery Rune Lv. 2 (x 1) | 10.0000% |
| Mystery Rune Lv. 3 (x 1) | 5.0000% |
 Boss Ticket x 1 | 5.0000% |
 Gold x 10000 | 14.0000% |
| Gold x 20000 | 9.000% |
 Silver Sealed Chest x 1 | 5.0000% |
 Silver Key x 1 | 5.0000% |
 EXP Orb (1 hr) x 1 | 4.0000% |
Silver Sealed Chest Item Rates
| Item | Rate |
|---|---|
| Upgrade Water x 60 | 10.0000% |
| Upgrade Water x 100 | 4.0000% |
| Dark Perfume x 2 | 15.0000% |
| Mystery Rune (Lv 2) x 1 | 6.0000% |
| Mystery Rune (Lv 3) x 1 | 7.0000% |
| Mystery Rune (Lv 4) x 1 | 3.0000% |
 Rune Ticket x 10 | 10.0000% |
| Rune Ticket x 15 | 5.0000% |
| Boss Ticket x 1 | 6.0000% |
 Ticket of Infinity x 1 | 8.0000% |
| Gold x 20,000 | 10.0000% |
| Gold x 40,000 | 5.0000% |
 Gold Sealed Chest x 1 | 3.0000% |
 Gold Key x 1 | 3.0000% |
| EXP Orb (1 hr) x 1 | 5.0000% |
Gold Sealed Chest Item Rates
| Item | Rate |
|---|---|
| Upgrade Water x 100 | 15.0000% |
| Upgrade Water x 200 | 5.0000% |
| Dark Perfume x 3 | 15.0000% |
| Mystery Rune (Lv 4) x 1 | 10.0000% |
| Mystery Rune (Lv 5) x 1 | 3.0000% |
| Mystery Rune (Lv 6) x 1 | 1.0000% |
| Rune Ticket x 20 | 10.0000% |
| Rune Ticket x 30 | 5.0000% |
| Boss Ticket x 1 | 7.0000% |
| Ticket of Infinity x 1 | 10.0000% |
| Gold x 100,000 | 8.0000% |
| Gold x 200,000 | 5.0000% |
| EXP Orb (1 hr) x 1 | 5.0000% |
| EXP Orb (2 hrs) x 1 | 1.0000% |
MementoMori Related Guides
Beginner's Guides
Gear Guides
Farming Guides
Game Mechanics
Intermediate Guides
Gacha Guides
Trial Guides
| Trial Guides | |
|---|---|
| List of All Trials and Their Rewards | Cave of Space-Time Guide |
| Tower of Infinity Guide | Fountain of Prayers Guide |
| Tower of Souls Guide | Temple of Illusions Guide |
Guild Guides
PvP Guides
| PVP Guides | |
|---|---|
| When Should You Start Playing PvP | Battle League PvP Guide |
| Legend League PvP Guide | PvP Team Building Guide |
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