| Category | Marvels |
| World | Osâchar |
| Continent | |
| Region | |
| Owner | none |
| Built | 11 Temporal 4674 DE |
| Map |
Balsyn was a supply depot for a mixed chaos archon army under Sarseg. After the loss of their master, and knowing the Covenant might coming looking, they prepared their defenses. Following plans laid down by Sarseg, they buried Balsyn's entrances behind a vast network of outposts, traps, and flooding others. With other pressing matters, the Covenant never got around to repatriating Balsyn's chaos archons, and like many other primordial bastions of the Creation War (1486 DE - 8777 DE), left it under the watch of the natives.
In 15 LE, following the Codices of Sarseg, a team of Durkoth followed a twenty-mile path into Balsyn. Suffering hundreds of casualties, in Balsyn's water sector, they found the Hydrocur; a aquatic elemental people still loyal to the long-dead Sarseg. Convinced of his passing, then bound by the words of the Codices, they became loyal minions of new masters.