Sigebert's Abyss Guide Ascension Instance
Sigebert's Abyss is an Ascension Instance in AION 2 where you face Abyssal Sigebert. Below: every difficulty and the bosses and monsters inside.
Sigebert's Abyss
- Type
- Ascension Instance
- Bosses
- 1
Sigebert's Abyss quick guide
The short version: what you need to enter, the bosses with their enrage timers and named skills, and the drops worth the run, all read from the game client. Boss levels are for Standard.
Sigebert's Abyss boss guide: mechanics
- Route to this boss ↓
Abyssal Sigebert
Lv. 50 · Hero
Run Sigebert's Abyss with the map open beside you
Party dungeons, raids and instances with entry rules, bosses, rewards and an interactive dungeon map.
- Interactive dungeon maps with boss pins
- Bosses, difficulties and weekly reset day
- Rewards and loot for every mode
Sigebert's Abyss Map: Bosses, Rooms & Route
Interactive Sigebert's Abyss map for AION 2 showing 1 boss and named-monster locations, 4 monster packs, portals, doors and the reward cube on the in-game dungeon map.
Sigebert's Abyss map (Standard) with every boss, monster pack and object placed from the game client's spawn data.
Sigebert's Abyss Walkthrough: Bosses, Monster Packs & Route
Step-by-step Sigebert's Abyss walkthrough on Standard: the route to the boss, 4 monster packs (10 monsters) and every chest, shrine, door and portal along the way. The boss marker matches the map above.
Entrance
Start at the dungeon entrance.
Stage 1: Abyssal SigebertFinal boss
Fight through 4 monster packs – 10 monsters in total – on the way to Abyssal Sigebert. Monsters here are Lv. 50. Expect mostly Fate Archon Renegade, Fate Archon Heretic, and Fate Archon Betrayer. Along the way: Abyssal Core and Abyssal Door ×2.
Monsters on the way
Abyssal Core- Abyssal Door ×2
Abyssal Sigebert is the final boss of Sigebert's Abyss; defeat it to complete the run.
Optional areas off the route
A few extras lie off the main route. Along the way: Guardian Monolith ×3 and Abyssal Door.
- Guardian Monolith ×3 (Rolls one of: Liberation Monolith and Purification Monolith)
- Abyssal Door
Sigebert's Abyss entry requirements & limits
Entry level, party size and run limits for each mode of Sigebert's Abyss, read from the game client.
| Mode | Party size |
|---|---|
| Standard | Solo |
Bosses and monsters
Bosses: 1. Other monster types inside: 4. Open any of them for its level and drops.
| Name | Level |
|---|---|
 Abyssal Sigebert | 50 |
Monsters:
Fate Archon Renegade
Fate Archon Heretic
Fate Archon Betrayer
Remnants of a Culled DaevaLoot table
The global client has no loot table for Sigebert's Abyss. Loot from instanced bosses and monsters is rolled by the game server, so there are no items or drop chances to list.
Quests tied to Sigebert's Abyss
The quest The One Who Swears the Oath is tied to Sigebert's Abyss.
| Name | Type | Level |
|---|---|---|
| The One Who Swears the Oath | Ascension | 49 |
More Ascension Instance
| Name |
|---|
| Chloris's Abyss |
| Dream of Shattered Fragments |
| Dream of Torment |
| Dream Remnants |
| Forgotten Battlefield |
| Kaisinel's Collapsed Sanctum |
| Kaisinel's Distorted Dream |
| Narun's Dream |
Data read from the AION 2 global client (build 0.0.4387.0). Updated for the Nov 4, 2026 patch. How we read the game files
Sigebert's Abyss is an Ascension Instance in AION 2 around level 50. The global client lists its bosses, the monsters inside and any clear rewards, all shown on this page. Numbers come straight from the game files and match the North American and European servers.
Help us maintain accuracy! If you notice incorrect stats, missing data, or any issues, your feedback directly improves the quality of our data for the entire community.
Sigebert's Abyss FAQ
Who is the boss of Sigebert's Abyss?
The bosses of Sigebert's Abyss are Abyssal Sigebert. Each boss page shows its level and any boss challenge tiers.
Where is the final boss in Sigebert's Abyss?
Abyssal Sigebert is the final boss of Sigebert's Abyss; the interactive map above marks its exact spot.
What monsters are in Sigebert's Abyss?
Sigebert's Abyss has 4 monster packs with 10 monsters on Standard. The most common are Fate Archon Renegade, Fate Archon Heretic, Fate Archon Betrayer, and Remnants of a Culled Daeva; the walkthrough above lists them stage by stage.