Here is the full list of all 59 Sleeping Dogs: Definitive Edition achievements worth 1,225 gamerscore.
Found all the Evidence Collectibles
Completed all secondary content of Year of the Snake.
Defeated the cultists.
Completed End of the World.
Achieved 5 Gold Awards.
Found all the money shrines.
Completed all secondary content of Nightmare in North Point.
Banished Smiley Cat.
Sent Dogeyes, Ratface and Ponytail back to Hell.
Unlocked ten Triad Upgrades.
Achieved 30 Gold Stat Awards.
Achieved 30 Silver Stat Awards.
Purchased all clothing.
Purchased all vehicles.
Won 50,000 on a single cockfight.
Won a bet on a cockfight.
Tried 10 different foods or drinks.
Cruised for 2 minutes over 60 Km/h without damaging your car.
Prayed at all of the Health Shrines.
Hacked every Security Camera in the game.
Unlocked every lockbox in Kennedy Town and Aberdeen.
Unlocked every lockbox in North Point.
Unlocked every lockbox in Central.
Completed 100% of all missions, cases, favors, events, jobs and races.
Completed all Favors.
Achieved 90% and above for all songs at the Karaoke Bars in HK.
Completed all Street Races.
Achieved 15 Gold Stat Awards.
Completed all of Roland's Jobs.
Completed all of the open world Events.
Completed Big Smile Lee.
Used 10 different firearms to defeat enemies.
Shot out a cop's tires while fleeing in a police chase.
Used 10 different melee weapons to defeat enemies.
Completed all cases.
Unlocked ten Cop Upgrades.
Completed Dockyard Heist.
Completed 50% of all missions, cases, favors, events, jobs and races.
Achieved Face Level 10.
Defeated all 4 Martial Arts Clubs
Completed half of the open world events.
Achieved 15 Silver Stat Awards.
Picked a lock, planted a bug, traced a phone, cracked a safe, and took over a spy camera.
Hijacked 5 trucks and collected their cargo.
Achieved Face Level 5.
Completed 25% of all missions, cases, favors, events, jobs and races.
Completed Payback.
Successfully performed an action hijack.
Visited Aberdeen, Central, Kennedy Town and North Point.
Achieved 5 Gold Stat Awards.
Killed someone with a fish.
Completed a Case.
Achieved 1 Gold Stat Award.
Achieved 5 Silver Stat Awards.
Completed 10% of all missions, cases, favors, events, jobs and races.
Achieved Face Level 2.
Completed Night Market Chase.
Changed all your clothes in your wardrobe or a clothing store.
Performed 5 unique environmental kills.