SilusPSO
Where the rare monsters are, and how often they show up.
Boosted right now: Dorphon Eclair at 1/393 and Pouilly Slime at 1/345. Next change 2026-11-08 22:00. Rare monster spawn rates are fixed when a room is created — make a new room to pick up a new boost.
How it works
Twice a day, at 10:00 and 22:00, two rare monsters are picked and boosted to somewhere between 1/200 and 1/400. Everything else stays where the game normally puts it.
7 of the 9 rare monsters here are at stock appearance rates right now. The rotation is a spotlight on two of them at a time, not a server-wide increase — so it is worth checking which two before you pick where to farm.
The rare monster spawn rates in a room are decided the moment the room is made. A new boost does nothing for a room you are already in.
Every rare monster
| Rare | Comes from | Episode | Where (free roam) | Chance |
|---|---|---|---|---|
| Dorphon Eclairboosted | Dorphon | Ep4 | Crater (Eastern Route), Crater (Western Route), Crater (Southern Route), Crater (Northern Route), Crater Interior | 1/393 |
| Pouilly Slimeboosted | Pofuilly Slime | Ep1 | Cave 2, Cave 3 | 1/345 |
| Al Rappy | Rag Rappy | Ep1 | Forest 1, Forest 2 | 1/500 |
| Del Rappy (crater) | Sand Rappy | Ep4 | Crater (Eastern Route), Crater (Western Route), Crater (Southern Route), Crater (Northern Route), Crater Interior | 1/500 |
| Del Rappy (desert) | Sand Rappy | Ep4 | Subterranean Desert 1, Subterranean Desert 2, Subterranean Desert 3 | 1/500 |
| Hildeblue | Hildebear | Ep1, Ep2 | Forest 1, Forest 2, VR Temple Alpha | 1/500 |
| Love Rappy | Rag Rappy | Ep2 | VR Temple Alpha, VR Temple Beta | 1/500 |
| Merissa AA | Merissa A | Ep4 | Subterranean Desert 2, Subterranean Desert 3 | 1/500 |
| Nar Lily | Poison Lily | Ep1, Ep2 | Cave 1, Cave 2, Cave 3, VR Temple Alpha, VR Temple Beta | 1/500 |
| Pazuzu (crater) | Zu | Ep4 | Crater (Eastern Route), Crater (Western Route), Crater (Southern Route), Crater (Northern Route), Crater Interior | 1/500 |
| Pazuzu (desert) | Zu | Ep4 | Subterranean Desert 1, Subterranean Desert 2, Subterranean Desert 3 | 1/500 |
| Kondrieu | Saint-Milion / Shambertin | Ep4 | Meteor Impact Site | 1/10 per run |
Worth knowing
Kondrieu is one roll per run, not per kill
Every other chance on this page is rolled for each monster you kill. Kondrieu is a boss substitution — each time you reach the Episode 4 boss there is one 1-in-10 roll for it to be Kondrieu instead of Saint-Milion or Shambertin. One roll per run, however long the run took. So it is not fifty times easier than the 1/500 rows above it — it is a different thing being counted.
Free roam only
These locations come from the free-play maps. Quests place their own monsters, so a quest can put a rare monster somewhere this table does not list — and can leave one out of an area that is listed here.
Mericus and Merikle are quest-only
You will not meet one in free roam — the Mericarol there is always a plain one. They turn up in some Episode 2 quests, and the surest are The East Tower and The West Tower, which place a few outright rather than leaving them to chance. The table above covers free roam, so it does not list them.
Your section ID does not change any of this
Section ID decides what a rare monster drops, not whether it appears. The chances here are the same on every ID.
A room can only hold so many rare monsters
The server stops assigning rare monsters once a room has sixteen of them. In a busy area a boost does less than the number suggests.
Challenge mode is separate
Challenge games use their own rate set, which is not part of the rotation and sits at 1/500 throughout.