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