All merchants in Undertale
Every merchant and trader the guide lists, with where they are and what they sell.
| Merchant | Area | Sells |
|---|---|---|
| Spider Bake Sale | The Ruins | Sells Spider Donuts (7G) and Spider Cider (18G) run by spiders in a web |
| Sans | Snowdin Forest | Sells hot dogs and hot cats later, but here offers humor, fake sentry checkpoints, and fried snow promises |
| Snowdin Shopkeeper | Snowdin Town | Sells Tough Glove, Manly Bandanna, Bisicle, and Cinnamon Bunny |
| Snowed Inn | Snowdin Town | Offers a room to sleep in for 80G, which fully heals the player and raises their max HP above its normal limit temporarily (the innkeeper also refunds the money after sleeping). |
| Gerson | Waterfall | Sells Sea Tea, Crab Apple, Torn Notebook, and Cloudy Glasses; also shares ancient lore regarding the Delta Rune and ASGORE. |
| Tem Shop | Waterfall | Sells Tem Flakes and pays for protagonist inventory items; can be funded to attend college to unlock the overpowered Temy Armor. |
| Gerson | Waterfall (Quiet Area) | Sells Sea Tea, Crab Apple, Cloudy Glasses, and Torn Notebook |
| Tem Shop | Waterfall (Temmie Village) | Sells Temmie Flakes (at various prices) and Temmie Armor (after paying 1000G for college tuition); also the only shopkeeper in the entire game who buys items from the player |
| Bratty and Catty | Hotland | Sells the Junk Food, Mystery Key, and Empty Gun in the alleyway right next to the MTT Resort. |
| Burgerpants | Hotland | Sells the Glamburger, Tasty Fly, Starfait, and Face Steak inside the MTT Resort hotel shop. |
| Alphys | Hotland (Alphys's Lab) | upgrades your cell phone with key functions, texting, and an expanded dimensional box |
| Sans | The Last Corridor | Offers final judgment and commentary on your moral choices across your run. |
| Gerson | Waterfall (Post-Neutral) | Sells Crab Apple, Sea Tea, Cloudy Glasses, and Torn Notebook, offering extended dialogue about the history of the Underground and ASGORE |
| Temmie Shop | Waterfall (Post-Neutral) | Sells Temmie Flakes and the powerful Temy Armor (if Temmie was sent to college earlier); remains the only vendor in the game where you can sell items |
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