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