Sleeping Dogs: Definitive Edition
59 Achievements
40-50h
GOG
Pet Cemetery
Send Dogeyes, Ratface and Ponytail back to Hell.
6.3%
How to unlock the Pet Cemetery achievement in Sleeping Dogs: Definitive Edition - Definitive Guide
Geoffistopheles
TrueAchievements
TrueAchievements
You will need to complete three missions for this achievement. The first two are Clean Out the Rats and Revenge x2. Completing both of these will unlock Ghosts of the Past.
CLEAN OUT THE RATS
You'll do a running tackle prompted by the game, then shoot it out through the area. When you've got Ratface cornered, you'll need to throw Jiang Shi into an energy source, then fight Ratface. Clear out the remaining Jiang Shi, counter his attacks and kick him while he's down.
REVENGE x2
You'll start with a few normal enemies, mostly knife wielding and brutes. For the knives, hold
to target one, press 
to vault over, then mash 
for the takedown. Once they're taken care of, use the knives to take down the brutes. After that, chase Dogeyes, then throw the Jiang Shi waiting into the power source. Grab the sword, use it to kill the Yaoguai, then clean up the Jiang Shi. Do regular 
combos to down Dogeyes, then grab him and run him into the incinerator.
GHOSTS OF THE PAST
Enter the club and defeat the Jiang Shi to rescue civilians. Pick up the sword just to keep it around at the moment, but drop it before the bouncers. Defeat them in the bathroom, pick the sword up again, and go up to VIP. Defeat the Yaoguai and the rest of the assorted enemies, and that's the end of the mission.
CLEAN OUT THE RATS
You'll do a running tackle prompted by the game, then shoot it out through the area. When you've got Ratface cornered, you'll need to throw Jiang Shi into an energy source, then fight Ratface. Clear out the remaining Jiang Shi, counter his attacks and kick him while he's down.
REVENGE x2
You'll start with a few normal enemies, mostly knife wielding and brutes. For the knives, hold
to target one, press to vault over, then mash for the takedown. Once they're taken care of, use the knives to take down the brutes. After that, chase Dogeyes, then throw the Jiang Shi waiting into the power source. Grab the sword, use it to kill the Yaoguai, then clean up the Jiang Shi. Do regular combos to down Dogeyes, then grab him and run him into the incinerator.GHOSTS OF THE PAST
Enter the club and defeat the Jiang Shi to rescue civilians. Pick up the sword just to keep it around at the moment, but drop it before the bouncers. Defeat them in the bathroom, pick the sword up again, and go up to VIP. Defeat the Yaoguai and the rest of the assorted enemies, and that's the end of the mission.