Games like Crawler 3D
Games like Crawler 3D include Lunacid, Darkest Dungeon®, Wolcen: Lords of Mayhem, Black Myth: Wukong, and Grim Dawn. We matched them by the tags players give Crawler 3D on Steam (Dungeon Crawler, Grid-Based Movement, First-Person, RPG, and Turn-Based Combat): closest matches first, and among equally close ones the better-known games.

Lunacid
Shared: Dungeon Crawler · First-Person · RPG

Darkest Dungeon®
Shared: Dungeon Crawler · Turn-Based Combat · RPG

Wolcen: Lords of Mayhem
Shared: RPG · Singleplayer · Action RPG

Black Myth: Wukong
Shared: RPG · Action · Singleplayer

Grim Dawn
Shared: Dungeon Crawler · RPG · Action RPG

Legend of Grimrock
Shared: Dungeon Crawler · Grid-Based Movement · RPG

Path of Exile
Shared: Dungeon Crawler · Action RPG · RPG

Last Epoch
Shared: RPG · Dungeon Crawler · Action RPG

Torchlight II
Shared: RPG · Dungeon Crawler · Action RPG

Fatekeeper
Shared: First-Person · RPG · Action

Legend of Grimrock 2
Shared: Dungeon Crawler · Grid-Based Movement · RPG

Clair Obscur: Expedition 33
Shared: Turn-Based Combat · RPG · Singleplayer

Delver
Shared: Dungeon Crawler · First-Person · RPG

Path of Exile 2
Shared: RPG · Dungeon Crawler · Action RPG

Kingdom Come: Deliverance II
Shared: RPG · First-Person · Singleplayer

Mortal Sin
Shared: Dungeon Crawler · First-Person · RPG

Diablo® IV
Shared: Dungeon Crawler · RPG · Action RPG

Vampire Crawlers: The Turbo Wildcard from Vampire Survivors
Shared: Dungeon Crawler · Action · First-Person

Titan Quest II
Shared: RPG · Dungeon Crawler · Action

BioShock Infinite
Shared: First-Person · Action · Singleplayer

Torchlight
Shared: Dungeon Crawler · RPG · Singleplayer

Fallout: New Vegas
Shared: RPG · Singleplayer · First-Person

Kingdom Come: Deliverance
Shared: RPG · Singleplayer · First-Person

The Slormancer
Shared: Dungeon Crawler · RPG · Pixel Graphics