The Tremor Mod adds five new keys to the game, all three hardmode keys used to spawn Mimics and two keys used from the chests to open with.
| Key | Source | Purpose | Consumed on use | |
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| Template:Item link | 1 Template:Item link + 12 Template:Item link @ Template:Item link2 | Used to spawn a Ocean Mimic. | 
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| Template:Item link | 1 Template:Item link + 6 Template:Item link + 10 Template:Item link @ Template:Item link2 | Used to spawn a Desert Mimic. |
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| Template:Item link | 1 Template:Item link + 6 Template:Item link + 6 Template:Item link + 2 Template:Item link + 1 Template:Item link + 3 Template:Item link @ Template:Item link2 | Used to spawn a Submerged Mimic. |
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| Template:Item link | Various sources, mainly found inside the Ruins | Opening  Ruin Chests in the Ruins
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One is required per locked chest. |
| Template:Item link | Various sources, mainly found on the The Glacier | Opening  Ice Chests in the Glacier
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One is required per locked chest. |