Here is the full list of all 32 Shelter 69 achievements.
Survive 1000 invasions
Increase equipment rarity 250 times
Complete 1000 daily tasks
Reach level 25 with 10 champions
Complete 50 flirts
Complete 1000 expeditions
Clear 15 obstacles
Upgrade rooms 50 times
Visit 500 secret locations
Recruit 250 workers
Unlock all 13 Pocket Waifu characters!
Increase equipment level 250 times
Complete Quantity Over Quality or Only The Premium Quality
Complete 10 flirts
Complete 1000 QTEs
Build 25 rooms
Unlock Chapter 5
Ressurect 50 champions
Disassemble equipment 250 times
Log in daily for 30 days
Disassemble equipment 50 times
Recruit 25 workers
Visit 25 secret locations
Survive 25 invasions
Increase equipment rarity 20 times
Complete 50 expeditions
Increase equipment level 10 times
Complete 50 daily tasks
Log in daily for 7 days
Complete Give Me Regular or Got Something Better?
Complete 50 QTEs
Use skills 250 times