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