Dungeons · client Global

Ruins of the Ancient City of Ru

ID 400001 · SealAdvanced_L_0001

Game data: GlobalClient snapshot: 21/10/2026

Data region: Global
Client build: 26077854
Dataset version: steam-26077854-f9ed47fd0d00728a
Client snapshot: 21/10/2026
Source: Dungeon.dat · RewardDungeon.dat · RewardOdEnergyCube.dat · RewardItem.dat

Exported from the Global client; completeness and in-game behavior are unverified.

Unconfirmed: Some Russian text fields are missing · Reward probabilities are unconfirmed · Dungeon entrance coordinates have not been confirmed for Global

According to legend, the Ancient City of Ru was once the pinnacle of Atreian civilization, until it was consumed by the Abyss and vanished without a trace. For generations, its fate remained a mystery, with only scattered fragments of the once-magnificent city ever discovered in Reshanta. By tracing the unique wavelength of Ru's Heart, a relic from the lost city, the relentless relic hunters of the Shuliman Expedition uncovered the ruins of Ru and the shifting Abyss connected to them. News of the discovery quickly spread, drawing adventurers from across Atreia in search of the rumored relic of Israphel. However, the entrance to the shifting Abyss proved costly to maintain and was often forced to close. To this day, uncovering the secrets hidden within Ru remains the lifelong ambition of countless adventurers.

Type: Seal
Category: Seal
Map: 400001
Recommended level: 45
Available in DPS rankings: No
Client order: 404
Reward sets: 2