The current server IP for all maps is:
91.135.7.212
If you wish to join a server via the Steam UI, you may simply use the IP with the port number from the links below (the last 5 numbers and colon).
For example, the Ragnarok IP with port would be:
91.135.7.212:27026
The direct links in the post can be used when you are unable to find the Atlantis servers in your in-game server list.
The Island
UK-PVE-Atlantis[ISLAND][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27016
Ragnarok
UK-PVE-Atlantis[RAGNAROK][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27026
Scorched Earth
UK-PVE-Atlantis[SCORCHED][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27036
The Center
UK-PVE-Atlantis[CENTER][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27046
Aberration
UK-PVE-Atlantis[ABERRATION][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27056
Extinction
UK-PVE-Atlantis[EXTINCTION][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27066
Crystal Isles
UK-PVE-Atlantis[CRYSTAL ISLES][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27076
Valguero
UK-PVE-Atlantis[VALGUERO][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27086
Mod Spotlight
UK-PVE-Atlantis[MOD SPOTLIGHT][15T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27096
Genesis
UK-PVE-Atlantis[GENESIS][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27106
Genesis: Part 2
UK-PVE-Atlantis[GENESIS2][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27116
Lost Island
UK-PVE-Atlantis[LOST ISLAND][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27126
Fjordur
UK-PVE-Atlantis[FJORDUR][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:27136
Breeding (currently offline)
UK-PVE-Atlantis[BREEDING][10T/5H/3XP][SS]
steam://connect/play.atlantis.tips:40017
The breeding server is password protected - please contact Dessi on Discord to gain access