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.
Achieved 5 Gold Awards.
Completed all secondary content of Nightmare in North Point.
Sent Dogeyes, Ratface and Ponytail back to Hell.
Found all the money shrines.
Completed 100% of all missions, cases, favors, events, jobs and races.
Purchased all vehicles.
Completed all of the open world Events.
Completed all cases.
Achieved 30 Gold Stat Awards.
Achieved 30 Silver Stat Awards.
Completed all Street Races.
Completed all Favors.
Completed Big Smile Lee.
Unlocked ten Triad Upgrades.
Used 10 different firearms to defeat enemies.
Purchased all clothing.
Unlocked every lockbox in Central.
Hacked every Security Camera in the game.
Unlocked every lockbox in North Point.
Unlocked every lockbox in Kennedy Town and Aberdeen.
Won a bet on a cockfight.
Won 50,000 on a single cockfight.
Achieved 90% and above for all songs at the Karaoke Bars in HK.
Achieved 15 Gold Stat Awards.
Completed Dockyard Heist.
Completed 50% of all missions, cases, favors, events, jobs and races.
Unlocked ten Cop Upgrades.
Completed half of the open world events.
Achieved Face Level 10.
Hijacked 5 trucks and collected their cargo.
Picked a lock, planted a bug, traced a phone, cracked a safe, and took over a spy camera.
Completed all of Roland's Jobs.
Achieved 15 Silver Stat Awards.
Achieved 5 Gold Stat Awards.
Defeated all 4 Martial Arts Clubs
Completed 25% of all missions, cases, favors, events, jobs and races.
Achieved Face Level 5.
Completed Payback.
Shot out a cop's tires while fleeing in a police chase.
Tried 10 different foods or drinks.
Used 10 different melee weapons to defeat enemies.
Completed a Case.
Killed someone with a fish.
Prayed at all of the Health Shrines.
Completed 10% of all missions, cases, favors, events, jobs and races.
Achieved 5 Silver Stat Awards.
Visited Aberdeen, Central, Kennedy Town and North Point.
Achieved Face Level 2.
Changed all your clothes in your wardrobe or a clothing store.
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.