Games like Sleeping Dogs: Definitive Edition
Games like Sleeping Dogs: Definitive Edition include Grand Theft Auto V Legacy, Red Dead Redemption 2, Grand Theft Auto IV: The Complete Edition, Watch_Dogs® 2, and Mafia II (Classic). We matched them by the tags players give Sleeping Dogs: Definitive Edition on Steam (Open World, Action, Martial Arts, Crime, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Grand Theft Auto V Legacy
Shared: Open World · Action · Crime

Red Dead Redemption 2
Shared: Open World · Action · Story Rich

Grand Theft Auto IV: The Complete Edition
Shared: Open World · Action · Crime

Watch_Dogs® 2
Shared: Open World · Action · Third Person

Mafia II (Classic)
Shared: Open World · Action · Crime

Grand Theft Auto V Enhanced
Shared: Open World · Action · Crime

Sleeping Dogs
Shared: Open World · Action · Martial Arts

Just Cause™ 3
Shared: Open World · Action · Singleplayer

Rise of the Tomb Raider™
Shared: Action · Open World · Singleplayer

The Witcher 3: Wild Hunt — Remastered
Shared: Open World · Story Rich · Singleplayer

Marvel’s Spider-Man Remastered
Shared: Open World · Action · Singleplayer

Assassin's Creed 2
Shared: Open World · Action · Parkour

Watch_Dogs™
Shared: Open World · Action · Third Person

METAL GEAR SOLID V: THE PHANTOM PAIN
Shared: Open World · Action · Story Rich

Tomb Raider Game of the Year
Shared: Action · Singleplayer · Third Person

STAR WARS Jedi: Survivor™
Shared: Action · Open World · Singleplayer

Batman™: Arkham Knight
Shared: Open World · Action · Singleplayer

Mafia
Shared: Action · Open World · Crime

Just Cause 2
Shared: Open World · Action · Third Person

God of War
Shared: Action · Singleplayer · Story Rich

Ghost of Tsushima DIRECTOR'S CUT
Shared: Open World · Action · Singleplayer

Marvel’s Spider-Man: Miles Morales
Shared: Open World · Action · Singleplayer

Middle-earth™: Shadow of Mordor™
Shared: Open World · Action · Third Person

Assassin’s Creed® Brotherhood
Shared: Open World · Action · Adventure