Here is the full list of all 38 The Savior's Gang achievements.
Finish the level with D Rank
Complete the first call with your worshippers
Get angry with your father
Lead your worshippers to the north
Reach an agreement with Stan to stop the apocalypse
Encourage your worshippers to keep traveling
Make your mother jealous
Explain to your father what is The Show
Calm your worshippers with children conversations
Your stepfather sends a chat chain
Uncover your father's predilection for the promised land
Let worshippers see snow for the first time
Make fun of your worshippers with Stan
Get close to the Stan’s Cave
Your father violates the data protection
Break up your deal with Stan
Join all the super entities in a single chat
Face Stan even knowing that your father is wrong
Get 3 holy grails
Get 3 Altenum crystals
Hang up the phone to the worshippers 5 times
Finish a level with only women
Kill 100 worshippers
Get 8 grails
Get 8 altenum crystals
Kill 50 worshippers with the chainsaw
Inhale poison gas for over 100 seconds
Let 50 worshippers burn
Let at least one worshipper dies in each type of trap
Complete a level in a half of time
Kill 250 worshippers
3 levels with S Rank
Get all the grails
Get all the altenum crystals
Buy all the upgrades in the shop
Complete all the levels
Complete 7 levels in S Rank
Get all achievements