The Construction Amulet is a craftable item found in the Ancient Tab. It requires 1 Green Gem, 3 Nightmare Fuel and 2 Thulecite, and at least a Broken Ancient Pseudoscience Station to craft. It also can randomly drop from an Ancient Pseudoscience Station when the latter is damaged with a Hammer, Gunpowder/Slurtle Slime etc. Like all items from the Ancient Tab, Construction Amulets cannot be prototyped and Characters always need to be near an Ancient Pseudoscience Station to craft them again.
While having it equipped in the chest slot, crafting items requires half the materials they would normally consume, rounded up. It degrades by 20% each time an item is crafted. It will also provide the player with a passive +2 per minute.
In Don't Starve Together, the Dragonfly can be farmed in order to get Green Gems which allow you to make unlimited Construction Amulets. Green Gems can also be gathered in the Caves from Cave Holes by using The Lazy Forager.
- Since Green Gems are so rare, the best use for Construction Amulets is to craft items that require very rare or non-renewable materials (i.e. items from the Ancient Tab).
- It is possible to use a Construction Amulet to craft 5 Thulecite Suits for 15 Thulecite, then use a Deconstruction Staff on those 5 Thulecite Suits to get 30 Thulecite back for a profit of 13 Thulecite (the Amulet cost 2 Thulecite). Doing this multiple times makes it possible to collect large amounts of otherwise rare Thulecite from a few Green Gems.
- When not playing with the Reign of Giants DLC and using this method, it is advised to save the last use of the Amulet to craft a Deconstruction Staff for the next round instead for one less Green Gem, which is much rarer than Thulecite.
- For crafting items that costs an odd amount of resources the amulet will require the bigger half of the resources needed to craft said item for example a chest crafted with the amulet uses 2 boards instead of 1.
- due to the bug below, it is recommended to use the second-to-last use to build another construction amulet, and so forth.
- The Construction Amulet shares the same in-game model with the Life Giving Amulet but its gem is green instead of red.
- When left with only 20% durability remaining (its last use), the Amulet's effect will only partially work. The amulet will properly allow the player to completely build something with only the first half of its normal material cost. However, it will erroneously cause the second half of the cost to be consumed as well, if the player has the materials.