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