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