Eta is the seventh World available to Hunting, and it is only available after the 1st Ascension. It is composed of 10 Zones in 5 different backgrounds. Eta is bacterial themed, and is the first world to have monsters with sequential names, from A to J.
The kill timer for each creature in Eta is always 10s for the 'common'. Bosses are always 40s.
If the player hasn't achieved Inferno Mode the number of kills required to move to the next stage will always be 80 for the 'common', increasing by 10 after each boss stage (however back to 80 at the beginning of each ascension). The first boss will require 10 kills, while the final boss will require 15.
| Zone | Image | Name | Level | HP[1] |
|---|---|---|---|---|
| 1 | 
|
Bacterial Agent A | 146 | 21,321 |
| 2 | 
|
Bacterial Agent B | 147 | 21,614 |
| 3 | 
|
Bacterial Agent C | 148 | 21,909 |
| 4 | 
|
Bacterial Agent D | 149 | 22,206 |
| 5 | 
|
Bacterial Agent E | 150 | 90,020 |
| 6 | 
|
Bacterial Agent F | 151 | 22,806 |
| 7 | 
|
Bacterial Agent G | 152 | 23,109 |
| 8 | 
|
Bacterial Agent H | 153 | 23,414 |
| 9 | 
|
Bacterial Agent I | 154 | 23,721 |
| 10 | 
|
Bacterial Agent J | 155 | 96,120 |
| Zone(s) | Image
|
|---|---|
| 1,2 | 
|
| 3,4 | 
|
| 5,6 | 
|
| 7,8,9 | 
|
| 10 | 
|
| Zone | Image | Name | Level | HP[1] |
|---|---|---|---|---|
| 1 |
|
Bacterial Agent A | 231 | 53,366 |
| 2 |
|
Bacterial Agent B | 232 | 53,829 |
| 3 |
|
Bacterial Agent C | 233 | 54,294 |
| 4 |
|
Bacterial Agent D | 234 | 54,761 |
| 5 |
|
Bacterial Agent E | 235 | 220,920 |
| 6 |
|
Bacterial Agent F | 236 | 55,701 |
| 7 |
|
Bacterial Agent G | 237 | 56,174 |
| 8 |
|
Bacterial Agent H | 238 | 56,649 |
| 9 |
|
Bacterial Agent I | 239 | 57,126 |
| 10 |
|
Bacterial Agent J | 240 | 230,420 |
| Zone(s) | Image
|
|---|---|
| 1,2 |
|
| 3,4 |
|
| 5,6 |
|
| 7,8,9 |
|
| 10 |
|
