Difficulty 1 / 10. 5 to 10 minutes to complete. More easy guides here to get 100% here

Prince + Village = Peasant, Tavern
Prince + Tavern = Drunken Smith, Innkeeper, Thief
Prince + Castle = Lazy Knights, Rusty Weapons
Prince + Forest = Backwoods, Druid
Prince + Backwoods = Dark Cave, Dogberry, Pond
Prince + Dark Cave = Sleeping Dragon, Stone
Prince + Pond = Mermaid, Water Lily
Sleeping Dragon + Thief = Broken Necklace
Prince + Druid = Dragon’s Blood, Recipe

Dogberry + Water Lily = Fragrant Mixture
Dragon’s Blood + Fragrant Mixture = Potion of Sobriety
Drunken Smith + Potion of Sobriety = Smith
Broken Necklace + Smith = Necklace
Mermaid + Necklace = Potion of Persuading
Lazy Knights + Potion of Persuading = Knights
Knights + Sleeping Dragon = Dragon’s Blood, Empty Cave, Gold
Gold + Peasant = Meat, Milk
Gold + Innkeeper = Beer

Beer + Peasant = Drunken Peasant
Prince + Drunken Peasants = Militia
Prince + Empty Cave = Ore
Ore + Smith = Pickaxe, Plow
Peasant + Plow = Plowman
Peasant + Pickaxe = Rockshaper
Castle + Rockshaper = Castle Wall
Castle + Smith = Forge
Forge + Rusty Weapons = Sharp Weapons
Rockshaper + Village = Mill