Trinkets are items in Deathloop that grant various buffs and effects when equipped. "Imbued with the power of Blackreef's temporal anomaly"[1], trinkets increase a player's attributes or improves their weapons.
Trinkets are equipped in the Loadout screen between time periods.
You can have up to 4 Character Trinkets and up to 3 Weapon Trinkets per weapon simultaneously active. The number of Trinket slots that a weapon has will vary depending on its quality (typically 1, 2, or 3 slots for Crude, Sleek or Exemplar weapons, respectively).
The maximum amount of trinkets (both character and weapon) that Colt can currently have/carry/store in his arsenal is 276. Once you reach that total amount, even if it's reached while in a map, you will no longer be able to select the "send to arsenal" option when you aim the reticle over a trinket. However, you can infuse an unlimited number of Springheeled and Shock Absorber trinkets—these will continue to appear in your inventory each morning.
Equipment Restrictions
Trinkets with the same effect cannot be equipped in Personal Trinket slots or on the same weapon simultaneously (however, Trinkets with the same effect can be equipped on multiple weapons simultaneously). While Trinkets with identical effects cannot be equipped simultaneously (e.g. two Hailfires; Hailfire + Gone Commando), similar effects like damage reduction under various conditions are additive if you equip multiple such Trinkets (e.g., Turtle Shell + Stone Wall will reduce damage more than Turtle Shell alone).
The color of a Trinket indicates its quality: Grey (Crude); Turquoise (Sleek); Purple (Exemplar); Gold (Exemplar). Most Trinkets have multiple quality tiers.
Two-in-One Trinkets
Golden trinkets (personal and weapon) that combine the effects of two Purple (Exemplar) trinkets. As noted they cannot be used with their Purple component-parts, eg. You cannot equip To The Wall and Glass Cannon.
Infusing and Sacrificing
Like all other equipment, Trinkets can be infused with or sacrificed for Residuum to allow them to persist across loops.
Weapon Trinkets
Grey (Crude): 2000 Infuse | 500 Sacrifice
Turquoise (Sleek): 3000 Infuse | 750 Sacrifice
Purple (Exemplar): 5000 Infuse | 1250 Sacrifice
Golden (Exemplar): 8000 Infuse | 2000 Sacrifice
Character Trinkets
Grey (Crude): 3000 Infuse | 750 Sacrifice
Turquoise (Sleek): 5000 Infuse | 1250 Sacrifice
Purple (Exemplar): 8000 Infuse | 2000 Sacrifice
Golden (Exemplar): 9000 Infuse | 2250 Sacrifice
Protect the Loop
Juliana receives trinkets as a part of ranking up through Protect the Loop. Unlike Colt they are always of their highest possible rarity, namely Purple Exemplar or Golden Exemplar (for 2-for-1 trinkets).
Exclusive Trinkets
Certain trinkets are only available for each character.