Here is the full list of all 24 Stray achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Complete the game in less than 2 hours.
Scratch in every chapter.
Sleep for more than one hour.
Complete the Sewers without killing any Zurks.
Complete the first Zurk pursuit without being caught.
Dunk the basketball.
Complete the game and open the city.
Gather all B-12 memories.
Die 9 times.
Go to jail.
Scratch the vinyl in the club.
Go through Midtown without being detected by the Sentinels.
Collect all badges.
Reach Midtown.
Nuzzle up against 5 robots.
Try to play mahjong with the robots.
Bring all the music sheets to Morusque.
Jump 500 times.
Browse through all of the TV channels.
Wear the paper bag.
Have B-12 translate a robot.
Meow 100 times.
Meet B-12.
Fall inside the city.