Games like TENGAI
Games like TENGAI include Broforce, METAL SLUG, Guns, Gore and Cannoli 2, METAL SLUG X, and Huntdown. We matched them by the tags players give TENGAI on Steam (Action, Arcade, Adventure, Shooter, and Shoot 'Em Up): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · Pixel Graphics · 2D

METAL SLUG
Shared: Action · Arcade · Side Scroller

Guns, Gore and Cannoli 2
Shared: Action · Side Scroller · Shooter

METAL SLUG X
Shared: Action · Arcade · Shoot 'Em Up

Huntdown
Shared: Action · Shooter · Side Scroller

METAL SLUG 3
Shared: Arcade · Action · Side Scroller

Exit the Gungeon
Shared: Arcade · Action · Adventure

Bit Blaster XL
Shared: Arcade · Shoot 'Em Up · Shooter

BALL x PIT
Shared: Action · Arcade · Bullet Hell

Alex Jones: NWO Wars
Shared: Action · Arcade · Shooter

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

METAL SLUG 2
Shared: Action · Arcade · Shoot 'Em Up

LUFTRAUSERS
Shared: Arcade · Action · Bullet Hell

Revolution Ace
Shared: Action · Shoot 'Em Up · Shooter

Guns, Gore & Cannoli
Shared: Action · Side Scroller · 2D

DRAINUS
Shared: Action · Shoot 'Em Up · Shooter

Borderlands 2
Shared: Action · Shooter · Adventure

ZeroRanger
Shared: Action · Shoot 'Em Up · Arcade

Vampire Survivors
Shared: Bullet Hell · Pixel Graphics · 2D

Planes, Bullets and Vodka
Shared: Action · Shoot 'Em Up · Arcade

Enter the Gungeon
Shared: Bullet Hell · Pixel Graphics · Action

Nova Drift
Shared: Arcade · Shoot 'Em Up · Bullet Hell

Castle Crashers®
Shared: 2D · Adventure · Action

Teenage Mutant Ninja Turtles: Shredder's Revenge
Shared: Side Scroller · Arcade · Action

