Games like Danmaku Engine
Games like Danmaku Engine include Garry's Mod, Planes, Bullets and Vodka, Grand Theft Auto V Legacy, Ravenfield, and Bit Blaster XL. We matched them by the tags players give Danmaku Engine on Steam (Action, Casual, Software, Action-Adventure, and Arcade): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Sandbox · Casual · Moddable

Planes, Bullets and Vodka
Shared: Action · Casual · Arcade

Grand Theft Auto V Legacy
Shared: Action · Shooter · Singleplayer

Ravenfield
Shared: Action · Shooter · Sandbox

Bit Blaster XL
Shared: Action · Arcade · Shooter

Vampire Survivors
Shared: Casual · Bullet Hell · Action

Cyberhunt
Shared: Action · Casual · Arcade

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

STAR WARS Jedi: Survivor™
Shared: Action · Action-Adventure · Singleplayer

Black Myth: Wukong
Shared: Action · Action-Adventure · Singleplayer

BONELAB
Shared: Action · Shooter · Sandbox

Tomb Raider Game of the Year
Shared: Action · Action-Adventure · Adventure

Just Cause 2
Shared: Action · Sandbox · Shooter

RADical ROACH Remastered
Shared: Action · Casual · Indie

Aimlabs
Shared: Action · Shooter · Software

LUFTRAUSERS
Shared: Action · Arcade · Bullet Hell

Just Cause™ 3
Shared: Action · Shooter · Sandbox

BONEWORKS
Shared: Action · Shooter · Sandbox

Rise of the Tomb Raider™
Shared: Action · Action-Adventure · Adventure

Hard Bullet
Shared: Action · Sandbox · Shooter

Exit the Gungeon
Shared: Action · Arcade · Bullet Hell

KovaaK's
Shared: Action · Shooter · Software

Grand Theft Auto IV: The Complete Edition
Shared: Action · Sandbox · Shooter

VLADiK BRUTAL
Shared: Action · Shooter · Casual