Kugnae is the capital city of the country of Koguryo. Kugnae is the 2nd largest city in NexusTK, the first being Buya. Though not as popular as the larger city (or perhaps because of it), Kugnae is still a very enjoyable place. It is sometimes a bit hard to get around, and even old players can still got lost there. Kugnae can be selected as a starting location for new players. Kugnae's gates lead many places. The northern gate leads to the south-east section of the Wilderness. The eastern gate leads to Dae shore. The southern gate leads past the Graveyard, in to Southern Koguryo and eventually Nagnang.
Creatures
Hunting areas
The caves in Kugnae are similar to those in Buya.
| Area | Location | Prerequisites |
| Rat cave | Level 3 | |
| Rabbit cave | Level 9 | |
| Fox cave | Level 20 | |
| Haunted house | Level 36 | |
| Spider cave | Level 42 |