Treasure Chests can be earned for completing quests , found while mining at or below 40KM, and can be bought by tickets.
Quest Chests
Loot
Rewards depend on the depth of the floor on which you found the chest. Chests have their maximum value at 570km.
| Reward probabilities | |
|---|---|
| Reward | Chance |
| Money | 50% |
| Nothing | 25% |
| Minerals | 13% |
| Recipe
(If you already have recipe, it will say you found nothing) |
7% |
| Equipment
(If you already have equipment, it will say you found nothing) |
4% |
| Oil | 1% |
Money: $10,000 - $6,000,000,000
Recipes and equipment:
- Basic Nuclear Engine
- Spike Drill
- Fan 6
- Large Cargo
- Intermediate Nuclear Engine
- Fan 7
- Advanced Nuclear Engine
- Monster Drill
- Giant Cargo Bay
- Fission Engine
- Sifting Drill
- Fan 9
- Drill King Engine
- Smashing Drill
- Fan 10
- Fat Cargo
- Drill Lord Engine
Minerals:
However, there is a possibility of receiving nothing.
Golden Treasure Chests
Golden chests are golden colored and give better rewards. They are very rare. Golden Chests are also a reward from quest 1 and 5 at the Underground City.
Loot
| Reward probabilities | |
|---|---|
| Reward | Chance |
| Money | 38,1% |
| Recipe
(If you already have recipe or equipment, you will get money reward instead) |
32,1% |
| Minerals | 20,1% |
|
Depth or oil |
3,1% |
| Metal Detector | 2,6% |
| Manager (ability to sell all) | 2,1% |
| Item "Heal" or if you already have it then 20 tickets | 1,6% |
| Item "Time Travel" or if you already have it then 33 tickets | 1% |
Money:
- Min $0
- Max $10 trillion (not confirmed, could be limited with variable size)
Money reward equation for Golden Chest is depth*depth*depth*(depth*.2)*10*(1+(Math.random()*7))
For example if you are at a depth of 100km the minimum amount of money would be 200 000 000 and maximum amount would be 1 600 000 000.
Minerals:
- 10,000,000 / 5,000,000 Painite
- 20,500,000 / 50.000.000 / 25,000,000 Black Opal
- 20,500,000 / 50,000,000 Red Diamond
- 120.5M / 250M californium
Recipes:
- Giant Cargo
- Sifting Drill
- Fan 9
- Fission Engine
- Fat Cargo
- Smashing Drill
- Fan 10
- Drill King Engine
- King Cargo
- King Drill
- Fan 11
- Drill Lord Engine
Other:
- Metal Detector (level 1 to lvl 30 (afaik))
- Manager (ability to sell all)(level 1 to level 40 (afaik))
Depth or oil:
- +3 depth when you haven't reached depth of 40km
- +1 depth when you haven't reached depth of 603km
- 10 oil after when you have reached depth of 603km
Tickets:
- 20 tickets
- 33 tickets
Spawn timing
There is no way to predict exactly when the next chest spawn. However, you can make a best guess approximation and measure average time. Spawn rate depends strongly on maximum depth you have achieved. It is also affected by activity in game, if you click or scroll few times in every 30 second you have slightly higher change to spawn a chest.
In this table there are calculated average times between chest spawns. For example it will take about 11 hours to spawn next golden chest at depth of 100km. But time may vary from 2000 minutes to 40 hours. That's why golden chests are so rare. Also there are possibility that regular Treasure chest will spawn on Golden chest and Golden one will disappear.
Currently, in v0.54, chest will despawn in 48 to 96 minutes, but in source code there are author's notes that say he will change this back to ~10 minutes.
| Depth | Treasure chest | Golden chest |
|---|---|---|
| 50km | 28min | 60h |
| 100km | 5min | 11h |
| 150km | 3min | 7h |
| 200km | 2min | 4h |
| 300km | 1min | 3h |
| 500km | 1min | 2h |
| 750km | <1min | 1h |
Average time is calculated based on 30-day single run non-active gamplay