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Last updated: August 26, 2026
On this page: The Boss · Spawn Cycle · Getting There · The Spider Eggs · Skill Patterns · Drops · Strategy · FAQ
MU Online Selupan – Raklion Hatchery Boss Guide
Selupan is the giant spider lord of the Raklion Hatchery — a level 145 raid boss with 54.8 million HP, an egg-nest mechanic that punishes lazy raids, and one of the game’s classic sources of socket items. Every number on this page comes from the server’s own RaklionHatchery.xml and monster data.
The Boss
| Level | 145 |
| HP | 54,800,000 |
| Damage | 2,500 – 3,000 |
| Defense | 937 |
| Attack rate | 2,000+ |
| Location | Hatchery (map 58), the sealed nest at the heart of Raklion |
| Spawn point | The nest centre at coordinates 145,31 |
Selupan waits at the centre of the Hatchery surrounded by 25 Spider Egg clusters placed in a ring around the nest — and the eggs are not decoration. Each egg cluster has 5.54 million HP of its own.
Spawn Cycle
On this server the Hatchery runs on a 6-hour cycle (EventStartBaseHour="6" with no random offset) — that is four Selupan fights every day, against roughly one per day on stock settings (18 hours plus a random 0–6). When a cycle opens, the boss makes its appearance 5 minutes in, and after Selupan dies the boss zone stays open for 300 seconds before closing for the next cycle.
Getting There
| Step | Requirement |
|---|---|
| Warp to Raklion | Character level 380, 15,000 zen |
| Cross Raklion to the Hatchery entrance | The nest gate sits at the far end of the ice field — see the Raklion spawn map |
| Enter the Hatchery (map 58) | Open only while the event cycle is active |
The Spider Eggs
The nest holds 25 egg clusters in three types (the server places Spider Eggs 1, 2 and 3 in a ring around the boss). The event config tracks the egg count with two thresholds — Half="5" and Max="15" — which drive the fight’s signature mechanic: the more eggs alive around him, the more dangerous Selupan’s phases get, and hatching waves pour spiderlings into the raid.
| Property | Value |
|---|---|
| Egg clusters placed | 25 (three types) |
| HP per cluster | 5,540,000 |
| Egg thresholds in config | 5 (half) / 15 (max) |
The standard raid split: one group clears eggs while the main damage stays on the boss. Ignoring the eggs entirely is how raids wipe at 40%.
Skill Patterns by HP
Selupan switches attack patterns at fixed HP percentages, straight from SkillPatterns in the event config:
| Boss HP | What happens |
|---|---|
| 80% | First pattern shift — the opening poke phase ends. |
| 60% | Second shift; AoE poison and web attacks join the rotation. |
| 50% | Halfway pattern — egg pressure starts to matter. |
| 40% | Fourth shift; damage output climbs. |
| 20% | Enrage territory — heaviest attack rotation. |
| 10% | Final pattern — burn phase, everything at once. |
His skill hits carry a 1.5 second internal delay (SelupanSkillHitDelay="1500"), which is the window dodge-heavy classes use to reposition between casts.
Drops
Selupan is the classic socket item boss — the fight was added to the game as the source of socket weapons and socket armor pieces, alongside high-end jewels. On this server the drop files also give Selupan a dedicated bonus drop condition on top of the regular tables (a 15% special roll in Monster_DropCondition.xml), so every kill has boss-only loot attached to it.
Strategy
| Tip | Why |
|---|---|
| Arrive before the 5-minute mark | The boss appears 5 minutes into the cycle — raids inside the nest at spawn control the pull. |
| Assign an egg team | Each cluster has 5.5M HP. Two players rotating on eggs keeps the count under the config’s thresholds all fight. |
| Save burst for 20% | The 20% and 10% patterns are the kill window race — stack damage buffs and finish before the rotation grinds the raid down. |
| Energy Elves and buffs win this | With 2,500–3,000 damage per hit, party defense and healing decide whether the burn phase is survivable. |
| Camp the 6-hour rotation | Four spawns a day — note the kill time and be back at the gate six hours later. |
Selupan FAQ
How often does Selupan spawn?
On this server the Hatchery runs a fixed 6-hour cycle - four Selupan fights per day. Stock servers use 18 hours plus a random 0-6, roughly once daily.
What level do I need to fight Selupan?
You need level 380 to warp to Raklion. For the fight itself, Selupan is level 145 with 54.8 million HP and hits for 2,500-3,000, so bring a real party.
What does Selupan drop?
Socket weapons and socket armor - Selupan is the classic socket item source - plus high-end jewels, and on this server an extra 15% boss-only drop condition per kill.
What do the Spider Eggs do?
The 25 egg clusters around the nest feed his phases and hatch spiderlings; each has 5.54 million HP. Raids assign a side team to keep the egg count down.
Where is the Hatchery?
Map 58, entered through the nest gate at the far end of Raklion. It is only open while the event cycle is active.
Related Guides
| Raklion Map Guide | Spawn map and all nine monsters on the way to the Hatchery. |
| Red Dragon Invasion | The classic five-times-daily dragon invasion event. |
| Evomon Event Guide | The evolution-chain event monster and its reward boxes. |
| All Maps & Monsters | Every map with spawn maps, stats and drop tables. |