Here is the full list of all 21 Children of the Sun achievements.
Direct hits hit the hardest
Consecutive prayers kill
It's been a long time
Avoid the Debris
Precise deviation might gets things on fire
Through their homes
Most can burn, but inside they can't
Just passing through
Some are on the run
Drifting into their conclusion
You can see them all
Open Gates through their Hearts
Two in One
He is blocking the entrance
350 meters are a long way
The Sun shines through
Appealing views from the top
Bullets that burn, are Bullets that hurt
Gas Tanks make the World burn brighter
When it moves, it spreads
The Virus is in their heads