Undercroft Dungeon
The entrance to Undercroft Dungeon is located in level 10 of the Wastelands. High combat stats and equipment is recommended. There are lootable chests throughout the dungeon. If you save your Undercroft Key until the last treasure chest at the end (22 keys in a row) you get a chance at the best loot. (AKA don't use your Undercroft Key on the other chests or you'll have to start over.)
Chest Rolls
Each chest appears to have five loot rolls. It's unknown if a higher roll is better or worse, or how the rolls even determine chance based on the odds. Whether a 1.0 roll has a chance to roll anything with a chance less than 1.0, making a lower loot roll more valuable, or if a higher loot roll can generate better loot. It appears to be the latter as higher chests have higher rolls. More Information is needed.
| Chest | Rolls |
|---|---|
| 1 | 1.0, 1.0, 0.5, 0.25, 0.1 |
| 2 | 1.0, 1.0, 0.5, 0.25, 0.1 |
| 3 | 1.0, 1.0, 1.0, 0.25, 0.1 |
| 4 | 1.0, 1.0, 1.0, 0.5, 0.25 |
| 5 | 1.0, 1.0, 1.0, 0.5, 0.25 |
Undercroft Chest #1
Base Rewards
Undercroft Chest #1 always contains the following item(s)
| Item | Quantity | Rarity | Value | |
|---|---|---|---|---|
|
Coins | 100 | Always |
100 |
Potential Rewards
Undercroft Chest #1 grants five additional loot rolls upon completion. Each roll has a chance to succeed, with the following success rates (in order):
- 1st roll: 100%
- 2nd roll: 100%
- 3rd roll: 50%
- 4th roll: 25%
- 5th roll: 10%
Only successful rolls yield extra loot.
| Item | Quantity | Rarity | Value | |
|---|---|---|---|---|
|
|
Coins | 50-500 | ~1/2.7 |
50–500 |
  |
Bass IOU | 1-5 | ~1/5.7 |
6–30 |
 |
Bluegill IOU | 1-5 | ~1/6.7 |
7–35 |
|
Fire Scroll | 5-50 | 1/20 |
10–100 |
|
Nature Scroll | 5-50 | 1/20 |
10–100 |
|
Water Scroll | 5-50 | 1/20 |
10–100 |
|
Iron Arrows | 10-100 | 1/20 |
50–500 |
 |
Iron Bar IOU | 1-10 | 1/20 |
37–370 |
|
Iron Gloves | 1 | 1/400 |
75 |
|
Iron Hatchet | 1 | 1/400 |
75 |
|
Iron Helm | 1 | 1/400 |
75 |
|
Iron Pickaxe | 1 | 1/400 |
75 |
|
Iron Scimitar | 1 | 1/400 |
135 |
|
Iron Full Helm | 1 | 1/400 |
150 |
|
Iron Longsword | 1 | 1/400 |
150 |
|
Iron Battleaxe | 1 | 1/400 |
240 |
|
Iron Chainmail Body | 1 | 1/400 |
240 |
|
Iron Platelegs | 1 | 1/400 |
240 |
|
Iron Shield | 1 | 1/400 |
240 |
|
Iron Great Sword | 1 | 1/400 |
360 |
|
Iron Chestplate | 1 | 1/400 |
480 |
Undercroft Chest #2
Base Rewards
Undercroft Chest #2 always contains the following item(s)
| Item | Quantity | Rarity | Value | |
|---|---|---|---|---|
|
|
Coins | 250 | Always |
250 |
Potential Rewards
Undercroft Chest #2 grants five additional loot rolls upon completion. Each roll has a chance to succeed, with the following success rates (in order):
- 1st roll: 100%
- 2nd roll: 75%
- 3rd roll: 50%
- 4th roll: 25%
- 5th roll: 10%
Only successful rolls yield extra loot.
| Item | Quantity | Rarity | Value | |
|---|---|---|---|---|
|
|
Coins | 100-500 | ~1/2.9 |
100–500 |
 |
Carp IOU | 1-5 | ~1/6.7 |
11–55 |
 |
Walleye IOU | 1-5 | 1/10 |
11–55 |
|
Fury Scroll | 5-25 | ~1/13.3 |
15–75 |
|
Rage Scroll | 3-15 | ~1/13.3 |
9–45 |
|
Energy Scroll | 10-50 | ~1/13.3 |
40–200 |
 |
Steel Bar IOU | 2-10 | ~1/13.3 |
186–930 |
|
Steel Arrows | 20-100 | 1/20 |
220–1,100 |
|
Steel Full Helm | 1 | 1/400 |
187 |
|
Steel Gloves | 1 | 1/400 |
187 |
|
Steel Hatchet | 1 | 1/400 |
187 |
|
Steel Helm | 1 | 1/400 |
187 |
|
Steel Pickaxe | 1 | 1/400 |
187 |
|
Steel Scimitar | 1 | 1/400 |
337 |
|
Steel Longsword | 1 | 1/400 |
375 |
|
Steel Battleaxe | 1 | 1/400 |
600 |
|
Steel Chainmail Body | 1 | 1/400 |
600 |
|
Steel Platelegs | 1 | 1/400 |
600 |
|
Steel Shield | 1 | 1/400 |
600 |
|
Steel Great Sword | 1 | 1/400 |
900 |
|
Steel Chestplate | 1 | 1/400 |
1,200 |
Undercroft Chest #3
Base Rewards
Undercroft Chest #3 always contains the following item(s)
| Item | Quantity | Rarity | Value | |
|---|---|---|---|---|
|
|
Coins | 750 | Always |
750 |
Potential Rewards
Undercroft Chest #3 grants five additional loot rolls upon completion. Each roll has a chance to succeed, with the following success rates (in order):
- 1st roll: 100%
- 2nd roll: 75%
- 3rd roll: 50%
- 4th roll: 25%
- 5th roll: 10%
Only successful rolls yield extra loot.
| Item | Quantity | Rarity | Value | |
|---|---|---|---|---|
|
|
Coins | 150-500 | 1/4 |
150–500 |
 |
Salmon IOU | 2-5 | 1/10 |
14–35 |
|
|
Fury Scroll | 15-50 | ~1/13.3 |
45–150 |
|
|
Rage Scroll | 15-50 | ~1/13.3 |
45–150 |
|
Warp Scroll | 3-10 | ~1/13.3 |
21–70 |
 |
Tuna IOU | 2-5 | ~1/13.3 |
90–225 |
 |
Palladium Bar IOU | 3-10 | ~1/13.3 |
675–2,250 |
|
Palladium Arrows | 30-100 | 1/20 |
900–3,000 |
|
Alchemy Scroll | 6-20 | 1/40 |
36–120 |
|
|
Fire Scroll | 30-100 | 1/50 |
60–200 |
|
|
Nature Scroll | 30-100 | 1/50 |
60–200 |
|
|
Water Scroll | 30-100 | 1/50 |
60–200 |
|
Bandit Mask | 1 | 1/50 |
11 |
 |
Elf Ears IOU | 2-5 | 1/50 |
150–375 |
|
|
Coins | 1,800-6,000 | 1/100 |
1,800–6,000 |
|
Amethyst Necklace | 1 | 1/100 |
225 |
|
Sapphire Necklace | 1 | 1/100 |
450 |
|
Emerald Necklace | 1 | 1/100 |
675 |
|
Topaz Necklace | 1 | 1/100 |
900 |
|
Palladium Gloves | 1 | 1/500 |
450 |
|
Palladium Hatchet | 1 | 1/500 |
450 |
|
Palladium Helm | 1 | 1/500 |
450 |
|
Palladium Pickaxe | 1 | 1/500 |
450 |
|
Palladium Scimitar | 1 | 1/500 |
810 |
|
Palladium Full Helm | 1 | 1/500 |
900 |
|
Palladium Longsword | 1 | 1/500 |
900 |
|
Palladium Battleaxe | 1 | 1/500 |
1,500 |
|
Palladium Chainmail Body | 1 | 1/500 |
1,500 |
|
Palladium Platelegs | 1 | 1/500 |
1,500 |
|
Palladium Shield | 1 | 1/500 |
1,500 |
|
Palladium Great Sword | 1 | 1/500 |
2,250 |
|
Palladium Chestplate | 1 | 1/500 |
3,000 |
Undercroft Chest #4
Base Rewards
Undercroft Chest #4 always contains the following item(s)
| Item | Quantity | Rarity | Value | |
|---|---|---|---|---|
|
|
Coins | 1,500 | Always |
1,500 |
Potential Rewards
Undercroft Chest #4 grants five additional loot rolls upon completion. Each roll has a chance to succeed, with the following success rates (in order):
- 1st roll: 100%
- 2nd roll: 100%
- 3rd roll: 75%
- 4th roll: 50%
- 5th roll: 25%
Only successful rolls yield extra loot.
| Item | Quantity | Rarity | Value | |
|---|---|---|---|---|
|
|
Coins | 400-1,000 | 1/4 |
400–1,000 |
 |
Crab IOU | 8-20 | 1/10 |
416–1,040 |
 |
Marlin IOU | 6-15 | ~1/11.1 |
312–780 |
|
|
Coins | 2,000-5,000 | ~1/12.2 |
2,000–5,000 |
|
|
Rage Scroll | 40-100 | ~1/13.3 |
120–300 |
|
|
Alchemy Scroll | 8-20 | ~1/13.3 |
48–120 |
|
|
Warp Scroll | 6-15 | ~1/13.3 |
42–105 |
 |
Coronium Bar IOU | 2-5 | 1/20 |
3,750–9,375 |
 |
Potion Of Accuracy (2) IOU | 2-5 | 1/25 |
30–75 |
|
Beer | 1 | 1/40 |
3 |
|
|
Coins | 4,000-10,000 | 1/50 |
4,000–10,000 |
 |
String IOU | 60-150 | 1/50 |
60–150 |
 |
Potion Of Mining (2) IOU | 2-5 | 1/50 |
30–75 |
 |
Potion Of Smithing (2) IOU | 2-5 | 1/50 |
30–75 |
|
Coronium Arrows | 40-100 | 1/100 |
2,520–6,300 |
|
Citrine Necklace | 1 | 1/100 |
1,125 |
|
Ruby Necklace | 1 | 1/100 |
1,350 |
|
Diamond Necklace | 1 | 1/200 |
1,575 |
|
Pirate's Key | 1 | 1/400 |
1 |
|
Coronium Gloves | 1 | ~1/666.7 |
3,750 |
|
Coronium Hatchet | 1 | ~1/666.7 |
3,750 |
|
Coronium Helm | 1 | ~1/666.7 |
3,750 |
|
Coronium Pickaxe | 1 | ~1/666.7 |
3,750 |
|
Coronium Scimitar | 1 | ~1/666.7 |
6,750 |
|
Coronium Full Helm | 1 | ~1/666.7 |
7,500 |
|
Coronium Longsword | 1 | ~1/666.7 |
7,500 |
|
Coronium Battleaxe | 1 | ~1/666.7 |
13,125 |
|
Coronium Chainmail Body | 1 | ~1/666.7 |
13,125 |
|
Coronium Platelegs | 1 | ~1/666.7 |
13,125 |
|
Coronium Shield | 1 | ~1/666.7 |
13,125 |
|
Coronium Great Sword | 1 | ~1/666.7 |
19,687 |
|
Coronium Chestplate | 1 | ~1/666.7 |
26,250 |
|
Silver Warrior Helm | 1 | 1/4,000 |
3,000 |
Undercroft Chest #5
Base Rewards
Undercroft Chest #5 always contains the following item(s)
| Item | Quantity | Rarity | Value | |
|---|---|---|---|---|
|
|
Coins | 2,500 | Always |
2,500 |
Potential Rewards
Undercroft Chest #5 grants five additional loot rolls upon completion. Each roll has a chance to succeed, with the following success rates (in order):
- 1st roll: 100%
- 2nd roll: 100%
- 3rd roll: 50%
- 4th roll: 50%
- 5th roll: 25%
Only successful rolls yield extra loot.
| Item | Quantity | Rarity | Value | |
|---|---|---|---|---|
|
|
Coins | 2,500-5,000 | 1/10 |
2,500–5,000 |
|
|
Coins | 1,250-2,500 | 1/10 |
1,250–2,500 |
|
Feathers | 100-200 | 1/20 |
100–200 |
 |
Tonga Root IOU | 5-10 | 1/20 |
15–30 |
 |
Amethyst Gem IOU | 2-3 | 1/20 |
300–450 |
|
|
Coins | 3,750-7,500 | ~1/22.2 |
3,750–7,500 |
 |
Nauru Root IOU | 4-8 | ~1/22.2 |
12–24 |
 |
Samoan Root IOU | 4-8 | 1/25 |
12–24 |
 |
Sapphire Gem IOU | 2-3 | 1/25 |
600–900 |
 |
Vanua Root IOU | 4-8 | ~1/28.6 |
12–24 |
|
|
Coins | 5,000-10,000 | ~1/33.3 |
5,000–10,000 |
 |
Emerald Gem IOU | 2-3 | ~1/33.3 |
900–1,350 |
 |
Mariana Root IOU | 4-8 | 1/40 |
12–24 |
|
|
Alchemy Scroll | 25-50 | 1/40 |
150–300 |
|
|
Warp Scroll | 15-30 | 1/40 |
105–210 |
|
Blood Scroll | 20-40 | 1/40 |
300–600 |
|
Chef's Hat | 1 | 1/40 |
15 |
|
Dark Hood | 1 | 1/40 |
22 |
|
Old Hood | 1 | 1/40 |
22 |
 |
Topaz Gem IOU | 2-3 | 1/40 |
1,200–1,800 |
 |
Potion Of Strength (2) IOU | 5-10 | 1/50 |
75–150 |
 |
Citrine Gem IOU | 2-3 | 1/50 |
1,500–2,250 |
|
|
Ruby Necklace | 1 | 1/50 |
1,350 |
 |
Octopus IOU | 15-30 | ~1/66.7 |
780–1,560 |
 |
Ruby Gem IOU | 2-3 | ~1/66.7 |
1,800–2,700 |
|
Druid's Hood | 1 | 1/80 |
22 |
|
|
Pirate's Key | 1 | 1/100 |
1 |
|
Celadon Arrows | 50-100 | 1/100 |
5,600–11,200 |
|
Blood Hood | 1 | 1/100 |
600 |
 |
Diamond Gem IOU | 2-3 | 1/100 |
2,100–3,150 |
|
|
Diamond Necklace | 1 | 1/100 |
1,575 |
|
Celadium Bar | 1 | 1/100 |
3,750 |
|
|
Coins | 12,500-25,000 | 1/200 |
12,500–25,000 |
|
Purple Cape | 1 | 1/200 |
15 |
|
Celadon Gloves | 1 | 1/1,000 |
7,500 |
|
Celadon Hatchet | 1 | 1/1,000 |
7,500 |
|
Celadon Helm | 1 | 1/1,000 |
7,500 |
|
Celadon Pickaxe | 1 | 1/1,000 |
7,500 |
|
Celadon Scimitar | 1 | 1/1,000 |
13,500 |
|
Celadon Full Helm | 1 | 1/1,000 |
15,000 |
|
Celadon Longsword | 1 | 1/1,000 |
15,000 |
|
Celadon Battleaxe | 1 | 1/1,000 |
26,250 |
|
Celadon Chainmail Body | 1 | 1/1,000 |
26,250 |
|
Celadon Platelegs | 1 | 1/1,000 |
26,250 |
|
Celadon Shield | 1 | 1/1,000 |
26,250 |
|
Celadon Great Sword | 1 | 1/1,000 |
39,375 |
|
Gold Warrior Helm | 1 | 1/4,000 |
22,500 |
Video Guide
The following videos show a run through the Undercroft Dungeon: