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