Quick answer: To unlock alchemy in Graveyard Keeper 2, follow the Plague Doctor story quest. When the Village Chief sends you to him, go back to your room and talk to Larry, the talking skull: a trap door opens to the dungeon under your house. The Plague Doctor gives you the Inquisitor's medallion and a door combination that open the Alchemy Lab tower north of your house. In the lab, study each ingredient at the Study Table (costs Science) to reveal its red, green and blue runes, then mix studied ingredients. The rune total decides what you get.

Spanish-speaking players search cómo desbloquear la alquimia ("how to unlock alchemy"), and the steps are the same. A common sticking point on Steam for how to unlock alchemy comes one step earlier: Larry won't show the trap door until the villagers' quests before it are done.

Quick facts

  • Unlocked by: the Plague Doctor quest, through the trap door in your room
  • Opens: the Alchemy Lab tower north of your house
  • Costs to study an item: Science, sometimes Faith
  • First recipe: Dream Dust = water + blood (1 green + 1 blue)
  • Fuel: the lab burns firewood

The Alchemy Lab and the Study Table

How to unlock alchemy

Follow the quests to the Plague Doctor

Keep helping villagers until the Village Chief mentions summoning fairies and sends you to the Plague Doctor. Then talk to Larry in your room; the trap door leads down.

Clear the path to the Plague Doctor

Work your way through the dungeon to his room. He gives you the door combination for the tower.

Open the tower

Use the Inquisitor's medallion and the combination to open the Alchemy Lab.

Get Science

There's a Science Kit in the lab chest. Decompose it at the Study Table. Later, decompose blank paper or notes, or craft Science Kits at the Writing Desk.

Study ingredients, then combine

Studying reveals an item's runes for good. Put studied ingredients in flasks and mix. Any ingredients that add up to the right runes work, and a recipe you find is saved.

First recipes

RecipeWhereRunes / ingredients
Dream DustLaboratory Iwater + blood (1 green + 1 blue)
Melted FatDistillation Cube1 Fat + 2 Clay Plates + 20 Fuel
Reanimation LiquidLaboratory II2 red + 1 green + 4 blue

Take the Dream Dust back to the Plague Doctor for two free zombies. Dream Dust, a Comet's Tail from the Astrologer and a tooth from a skull make the fairy summon.

Larry won't open the trap door? Players who were stuck here had skipped a villager step. One fixed it by talking to July again about the fairy.

FAQ

Related

Sources: a 7-tips guide, a 100-day playthrough and a recorded 100% playthrough on YouTube, Steam Community discussions, the 1.005 patch notes, GamesHorizon, gk2help.