Sewers | Walkthrough - Legend of Grimrock II Game Guide (2025)

20 - Puzzle/quest element

[12] - Item

Healing Crystal

Power Gem

Buried Treasure

I � To Archives

I � To Hamlet of Stormbreach

II � To Hamlet of Stormbreach

III � To Hamlet of Stormbreach

20 - Puzzle/quest element

1.1 � Entrance to boss chamber. Prepare some potions, as once you go in, you cannot go back. To leave the room after the fight is over, you have to use one of the Brass Keys that are in there.

1.2 � The boss is a big rat with a cannon and quite a few minions. Besides dealing a lot of damage, the boss is not very dangerous, but the minions prevent you from moving freely.
Having a lot of Healing Potions and a few Frost Bombs, you should hide in a niche, where only one enemie can attack you. This way, you will be facing the lesser rats one by one and they won't do much harm to an experienced team. Eventually you will come to face the guy with the cannon - you should constantly keep him frozen (with Frost Bomb) and attack. When he dies, get rid of the rest of the minions and collect the items.

1.3 � One of two Brass Keys

1.4 � Second Brass Key

1.5 � The second Brass Key fits this lock.

2.1 � You can see a few brdiges hanging above a spike trap. To open the door on the other side, you have to jump down onto the trap and press the switches on the walls in the right order.
The spikes can't hurt you when you are interacting with a switch. Jump down onto the first field right after the spikes disappear and move fast so that they won't hurt you.
The appropriate order od the switches is shown by the blue squares on the map (1-5).

3.1 � Secret - a switch on the wall that opens the passage (3.2) to a secret room.

3.2 � A passage to a secret room, opened by the switch marked 3.1.

4.1 � Secret - a switch on the wall that opens a passage (4.2).

4.2 � A wall that can be opend with a switch (4.1).

5.1 � Secret - an underwater lever that opens a passage to a secret chamber (5.2).

5.2 � Secret chamber that you can access using a lever (5.1). Inside, you will find a spring full of fish (worth catching) anda gate opened with a Gold Key.

5.3 � A lock (you need a Gold Key).

6 � After taking the Sield from here, the gate behind you will close and you will meet the dwarf that you know so well. Act the same as always, avoiding his attacks and performing them yourself. You won't be able to kill him again, as he will disappear and the gate will open.

7 � Underwater passage to the northern part of the location.

8.1 � A puzzle that you need to solve to get to a secret.
You have to jump into the water and go onto the islands in the right order so that a portal appears, without you stepping onto the outer shore. The appropriate order is shown by the yellow squares on the map.
If you do everything correctly, then you should see a portal to a secret chamber (8.2) when stepping onto the last island.

8.2 � After solving the puzzle (8.1), you will be able to access this chamber.

9 � A shortcut that teleports you to House of Braids on the Hamlet of Stormbreach map. You can obtain the key when solving the puzzle (Hamlet of Stormbreach 7.1).

[1] � Recipe: bomb

[2] � Archmage's Cap

[3] � Crystal Shard of Protection

[4] � Lightning Bomb

[5] � Two-handed Longsword

[6] � Shaman Staff, Diviner's Cloak

[7] � Leather Boots

[8] � Meteor Shield

[9] � Pellets

[10] � From hafling: Frie Bomb, Ornate Key

[11] � Sack: Potion of Vitality, Poison Bomb x3

[12] � Lock Picks

[13] � Crystal Shield

[14] � Greater healing Potion

[15] � Throwing Axe

[16] � Food

[17] � Skull

[18] � Cannon Ball x5

[19] � Cannon Ball

[20] � Cannon Ball

[21] � Potion of Vitality

[22] � Potion of Ressurection, Food

[23] � Throwing Axe

[24] � From boss: Hand Cannon

[25] � Lock Picks

[26] � Chest: Blooddrop Cap x3, Food

[27] � Sack: Mortar and Pestle, Falconskyre x3, Blooddrop Cap x2, Etherweed x2

[28] � Pellets

[29] � Pellets

[30] � Crossbow Quarrell x3

[31] � Crystal Gauntlets, Throwing Axe x3

Sewers | Walkthrough - Legend of Grimrock II Game Guide (2025)
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