There are 35 biomes in Pokerogue. Each biome has a different Pokémon, Trainer, and Dojo Master, and each is connected to a different biome. The Abyss biome is always at night during the game, regardless of the previous biomes time change, a feature that gives the Abyss biomes a unique atmosphere and challenge.Levels will encounter a boss fight divided into two stages. In Classic Mode and Daily Run, the biomes change every 10 waves, while in Endless Mode, the biomes change randomly every 1 to 4 waves.
Biome distribution chart
| Arrow Color | Encounter Chance |
|---|---|
| Blue | 50% |
| Yellow | 33% |
| Red | 25% |
Connected Biomes
| Movement | ||||
| Cemetery (100%) | → | abyss | → | Cave (33%) |
| Space (33%) | ||||
| Wasteland (33%) | ||||
Standard Pokemon
| Common | |||||
| commonly |  Murkrow (Anytime) |  Houndour (Anytime) |  Houndoom (Anytime) |  Sableye (Anytime) |  Purrloin (Anytime) |
 Liepard |  Pawniard |  Bisharp |  Nickit |  Thievul | |
 Impidimp |  Morgrem |  Grimmsnarl |  Maschiff |  Mabosstiff | |
 Kingambit | |||||
| Rare |  Absol |  Spiritomb |  Zorua |  Zoroark |  Deino |
 Zweilous |  Hydreigon | ||||
| Super Rare (SR) |  Umbreon | ||||
| Ultra Rare (UR) |  Darkrai |  Galarian Moltres | |||
There are a total of five levels of rarity, and each wave is determined by rolling a random number from 1 to 512. At this time, if there is a luck value, the maximum value of this random number is reduced by twice the luck value. If the maximum luck level, the SSS level, or the luck value is 14 points, the maximum random number is 484, which is 512 minus 28, which is twice 14. As a result, the probability of occurrence of ordinary grade Pokemon decreases, while the probability of occurrence of relatively high rarity Pokemon increases.
| Normal Appearance Chance | |||
| rarity | random number range | basic probability | Maximum Luck Chance |
| common | 512 ~ 157 | 356/512 (69.53%) | 328/484 (67.77%) |
| rare | 156 ~ 33 | 124/512 (24.22%) | 124/484 (25.62%) |
| rare | 32 ~ 7 | 26/512 (5.08%) | 26/484 (5.37%) |
| super rare (SR) | 6 ~ 2 | 5/512 (0.98%) | 5/484 (1.03%) |
| ultra rare (UR) | 1 | 1/512 (0.20%) | 1/484 (0.21%) |
Boss Pokemon
| Boss | |||||
| commonly | Houndoom | Sableye | Absol |  Honchkrow | Spiritomb |
Liepard | Zoroark | Hydreigon | Thievul | Grimmsnarl | |
| Mabosstiff | Kingambit | ||||
| Rare | Umbreon |  Hisuian Samurott | |||
| Super Rare (SR) | Darkrai | ||||
| Ultra Rare (UR) |  Palkia |  Yveltal | Galarian Moltres | ||
Additionally, in Director, Champion, and Endless modes, boss Pokémon specifically appear in waves of multiples of 10 where Paradox Pokémon and Infinite Dino do not appear, and the probability of this boss appearing does not have an ‘uncommon’ rating.
| Boss Appearance Probability | |||
| rarity | random number range | basic probability | Maximum Luck Chance |
| common | 64 ~ 21 | 44/64 (68.75%) | 37/57 (64.91%) |
| rare | 20 ~ 7 | 14/64 (21.9%) | 14/57 (24.56%) |
| super rare (SR) | 6 ~ 2 | 5/64 (7.8%) | 5/57 (8.77%) |
| ultra rare (UR) | 1 | 1/64 (1.6%) | 1/57 (1.75%) |
