- To travel to Iceberg, you need to be Lord/Lady have obtained Icebreaker License from S.S Huntington or Harbour cartographer .
- War Scraps can be traded in the Slushy Shoreline and Iceberg Charm Shoppes for Wax Charms and Sticky Charms. One bag of 5 charms is worth 1 War Scrap.
- Equipping Wax Charms give you a progress bonus of 1 foot whenever you catch a Bergling.
- Equipping Sticky Charms will prevent you from moving backward when you miss a Bergling.
- In Iceberg, you will need to navigate each zone and defeat a general before you can continue forward. There are a total of 4 zones with 4 generals. Successful hunts will move you deeper into the iceberg. Failing to catch mice will result in you moving backwards.
- You can choose to retreat and restart you run anytime by clicking on the retreat button on the heads-up display.
Treacherous Tunnels (0 - 300 ft)
- Tunnel Rats and Berglings abound here.
- They provide good progress upon catching them.
General encounter
Brutal Bulwark (301 - 600 ft)
- Brutes and Berglings live here.
- They will push you back even if you catch them.
General encounter
Bombing Run (601 - 1000 ft)
- Bomb Squad mice are abundant here.
- Tunnel Rats, Berglings and Brutes exist, but are rare.
- If you are short on scraps, you can save on charms here and use others.
General encounter
Mad Depths (1001 - 1200 ft)
- Zealot mice are most common here, they do not provide much progress upon catching them.
- Berglings, Brutes and Tunnel Rats exist, but are rare.
- This area has the slowest progress among the rest. If you wish to use your drill charges, this is the best place to use them.
General encounter
Icewing's Lair - 1800 ft
- Under 425 hunts:
- Frostwing Commander is present ONLY during first run through the Iceberg
- Icewing is present during ALL runs through Iceberg, EXCEPT the first
- Over 425 hunts:
- Frostwing Commander is ALWAYS present
- Icewing is NEVER present
Hidden Depths (1801 - 2000 ft)
- This area is only assess this area by defeating the Icewing under #250 hunts.
- The Deep Freeze base continues to provide its bonus here, but you can use other base if you want.
- Note that you only have until #250 hunts before the Iceberg destabilizes and you automatically retreat from here to Slushy Shoreline.
- If you do reach the end of the hidden depths, you will find the Hidden Lair, home of the Deep Mouse.
- There is also a number of rewards that you can receive depending on the number of hunts you take to reach the Icewing lair and successfully capturing Frostwing Commander or Icewing.
- <275 hunts: Iceberg Treasure Chest & Iceberg Strongbox & Iceberg Supply Chest
- 276 - 350 hunts: Iceberg Strongbox & Iceberg Supply Chest
- 351 - 425 hunts: Iceberg Supply Chest
- 425> hunts: no chest rewards