Here is the full list of all 21 21 Days achievements.
work as a cashier at Restaurant Sylvia
do carpentry at Factory
console the elderly man
understand all conversation
meet the ending of the game
visit Back Street
survive for 10 days
listen what happened to Kareem’s family
pile up Bricks at Factory
do gas pumping at Shell Gas station
work as a server at Restaurant Sylvia
visit Shell gas station
eat Halal food
visit Restaurant Sylvia
talk to Mahdi
take a rest in Central Park
work as a cashier at Shell Gas station
get the ticket from Lucas
do volunteer work ar Refugee School
talk to everyone at least once
work more for family who arrived here