There are many kinds of secret scattered around the map in the official campaign in Hammerwatch. They can be activated by triggering certain objects, such as pushing a button, breaking a secret wall or entering a secret tunnel that isn't indicated on the map. These secrets often comes with goodies, such as coins and planks, with sometimes monsters or traps. The first secret that the player can come across would be a cracked wall in Act 1; while the second one is a wall with a small hole with eyes peeking out, which is also in Act 1.
Secret Achievement RoomsEdit
- "Harvesting": Act 1, Floor 3
- "The Heist": Act 2, Floor 4
- "The Grisly Combination": Act 2, Floor 6
- "Earth & Void": Act 3, Floor 8
- "Midway": Act 4, Floor 10
- "Doomed Space Machine": Act 4, Floor 12
- Main article: Strange Planks
Across the game in secret areas are scattered several "Strange Planks". These serve no purpose until the end. After you beat the final boss they are used to exit safely from the castle. If the player did not find all the strange planks in the game they are unable to exit the castle and recieve a favourable ending.
Bonus levels can be unlocked by triggering multiple buttons. These levels contain a lot of bonus level monsters, as well as many coins.