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