Here is the full list of all 31 Going Medieval achievements.
Dismantle 50x items
Gather 10x Settlers
Hunt 20x Hares
Hunt 20x Deer
Hunt 20x Wolves
Hunt 5x Hares
Dismantle 5x Items
Unlock 25x Research Items
Survive a Full Year
Survive Until the First Winter
Unlock 10x Research Items
Survive Until the First Autumn
Hunt 5x Wolves
Hunt 5x Deer
Unlock 5x Research Items
Build a Wooden Beam
Unlock 3x Research Items
Survive Until the First Summer
Survive for Seven Days
Survive the First Raid
Kill a Raider
Store 20,000 Nutrition
Unlock First Research Item
Store 10,000 Nutrition
Store 5000 Nutrition
Harvest 200 Crops
Produce a Meal at a Campfire
Build an Enclosed Room
Harvest 50 Crops
Survive the First Day
Harvest 5 Crops