Instance List for Battle Of Immortals
Not many people do post about this game but I might gonna start to do so cause I play for quite a while and I know some stuff .

There might miss some.

Instance list :

Dragon Emperor's Catacomb - (Map of the same name) Realms 1,2 - Recommended 45+ (45 Soul Gear Drops)
Specter Island - Bermuda Islands Realms 3,4 - Recommended 60+ (60 Soul Gear Drops)
Giza Pyramid - Hall of Illusion Realms 7,8 - Recommended 70+ (75 Soul Gear Drops)
World Tree Garden - Nifhim in Easter Island North Realms 5,6 - Recommended 75+
Lava Heights - Burning Land Realms 5,6 - Recommended 85+ (90 Soul Gear Drops)

Those are the core dungeons. The mobs in these dungeons will always be the same levels.

Then you have event dungeons, whose content scales based to your team's average level.

Knight's Jail - Mistra in Atlantis (Any Realm) - 20+
Dragon Island - Ludia in Atlantis Square (2,4,6,8) from 12:00~14:00 and 20:00~22:00 server time - 30+
Fallen Darkness - Sea of Atlantis (2,4,6,8) from 12:00~14:00 and 20:00~22:00 server time - 30+
Trial for the Brave - Preece in Atlantis (2,4,6,8) - 30+
Energy Well - Berminham in Atlantis Realms 1,2 - 45+

Hope I helped , press thanks if I did