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