Here is the full list of all 19 7 Billion Humans achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
A worker is shredded by a killbot.
Finish the Mom and Dad of Invention cutscene.
Red path fully optimized.
All levels complete. Congratulations.
Orange path fully optimized
Finish the Morning Petroleum cutscene.
Blue path fully optimized.
A worker exploded.
Listen to all worker thoughts in a level.
Finish the Fitness Program cutscene.
Green path fully optimized.
Your solution fails more than 50% of the time.
A worker is a crushed by an appliance.
A worker is shredded by a shredder.
Solve any puzzle with at least 4x the number of commands required by the size challenge.
Solve any puzzle with at least 4x the number of seconds required by the speed challenge.
Finish the Intro to Morale Officers cutscene.
A worker fell into an infinite pit.
Finish the You're Hired! cutscene.