Bolded items are items that can be given as an item in that tier. Unbolded items can be traded in as an item of a given tier, but are not obtainable by trading other items.
Tier 1 items: Battery Pack, Magnifying Glass, Salt Shaker, Sleeping Mask, Broken Lever
Tier 2 items: Car Keys, Coin Purse, Compass, Coupon Book, Shovel, Sledge Hammer, Microchip, Treasure Map, Wind-up Key
- Each Microchip is a separate item, so having three provides three distinct trade offers.
Tier 3 items: Keycard, Lock Pick Kit, Lucky Rabbit's Foot, Metal Detector, Running Shoes, Silver Key, Vault Key 149, Vault Key 233, Vault Key 304, Vault Key 370, The Axe, Knight's Shield, Morning Star, Torch, Moon Pendant, Silver Spoon
Tier 4 items: Gear Wrench, Hall Pass, Prism Key, Secret Garden Key, Telescope, all 8 Contraptions, Basement Key, Diary Key, Key 8, Chronograph, Lunch Box, Repellent, Stopwatch, Watering Can, Upgrade Disk
- Each Upgrade Disk is considered the same item, so having multiple only produces one trade offer.
- An expired Stopwatch trading for a resource item works as normal, including re-adding to spawn pool, even though there is no Stopwatch in the inventory to remove. If it trades for a special item, the Stopwatch is not re-added to the spawn pool and the item obtained is actually fake, having no effects except visually appearing in the inventory. (If the trade UI is exited after the Stopwatch expires, the trade goes away.)
Tier 5 items: Emerald Bracelet, Master Key, Ornate Compass, Sanctum Key, Cursed Effigy
- Each Sanctum Key is considered the same item, so having multiple only produces one trade offer.
- Tier 5 items can trade into Allowance Token and Upgrade Disk. This is capable of giving Upgrade Disks even after the initial disk was used.
All items not listed here are not able to be traded.