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.
Finish the Mom and Dad of Invention cutscene.
Red path fully optimized.
All levels complete. Congratulations.
A worker is shredded by a killbot.
Orange path fully optimized
Blue path fully optimized.
Finish the Morning Petroleum cutscene.
Finish the Fitness Program cutscene.
Green path fully optimized.
Your solution fails more than 50% of the time.
A worker exploded.
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 seconds required by the speed challenge.
Solve any puzzle with at least 4x the number of commands required by the size challenge.
Finish the Intro to Morale Officers cutscene.
A worker fell into an infinite pit.
Listen to all worker thoughts in a level.
Finish the You're Hired! cutscene.