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