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