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