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