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