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