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