Games like 道衍诀
Games like 道衍诀 include 鬼谷八荒 Tale of Immortal, Wolcen: Lords of Mayhem, Path of Exile 2, Last Epoch, and Grim Dawn. We matched them by the tags players give 道衍诀 on Steam (Early Access, Strategy RPG, Hack and Slash, Character Customization, and Mythology): closest matches first, and among equally close ones the better-known games.

鬼谷八荒 Tale of Immortal
Shared: Mythology · Sandbox · Singleplayer

Wolcen: Lords of Mayhem
Shared: Hack and Slash · Action RPG · Loot

Path of Exile 2
Shared: Hack and Slash · Loot · Action RPG

Last Epoch
Shared: Hack and Slash · Loot · Action RPG

Grim Dawn
Shared: Hack and Slash · Loot · Action RPG

Titan Quest II
Shared: Hack and Slash · Mythology · Action RPG

Sands of Salzaar
Shared: Strategy · Character Customization · Hack and Slash

Black Myth: Wukong
Shared: Mythology · Action RPG · RPG

Path of Exile
Shared: Hack and Slash · Loot · Action RPG

Mount & Blade II: Bannerlord
Shared: Strategy · Character Customization · Sandbox

Diablo® IV
Shared: Hack and Slash · Loot · Action RPG

Torchlight II
Shared: Hack and Slash · Loot · Action RPG

God of War
Shared: Mythology · Hack and Slash · Action

The Scroll of Taiwu : Beyond The Dome
Shared: Sandbox · RPG · Strategy

Hades
Shared: Hack and Slash · Mythology · Indie

Kenshi
Shared: Strategy RPG · Sandbox · RPG

Warhammer 40,000: Inquisitor - Martyr
Shared: Hack and Slash · Loot · Action RPG

No Rest for the Wicked
Shared: Hack and Slash · Action RPG · Character Customization

Hades II
Shared: Hack and Slash · Mythology · Action

God of War Ragnarök
Shared: Hack and Slash · Mythology · RPG

Torchlight III
Shared: Hack and Slash · Loot · RPG

The Incredible Adventures of Van Helsing
Shared: Hack and Slash · RPG · Action RPG

Monster Hunter: World
Shared: Character Customization · RPG · Action

Minecraft Dungeons
Shared: Hack and Slash · Loot · RPG