Games like TR-12
Games like TR-12 include Pizza Tower, Katana ZERO, SANABI, Super Meat Boy, and Gravity Circuit. We matched them by the tags players give TR-12 on Steam (Action, Platformer, 2D Platformer, Shoot 'Em Up, and Top-Down Shooter): closest matches first, and among equally close ones the better-known games.

Pizza Tower
Shared: 2D Platformer · Platformer · Cartoony

Katana ZERO
Shared: Action · Platformer · 2D Platformer

SANABI
Shared: Action · 2D Platformer · Pixel Graphics

Super Meat Boy
Shared: Platformer · 2D Platformer · 2D

Gravity Circuit
Shared: Action · Platformer · 2D Platformer

Broforce
Shared: Action · Platformer · 2D

Shovel Knight: Treasure Trove
Shared: Platformer · Action · Pixel Graphics

The Messenger
Shared: Platformer · Action · 2D

Mina the Hollower
Shared: 2D Platformer · Platformer · Pixel Graphics

Sonic Mania
Shared: Platformer · 2D · Action

Celeste
Shared: Platformer · 2D Platformer · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · Platformer · 2D

BlazBlue Entropy Effect
Shared: Action · Platformer · 2D

Hotline Miami
Shared: Action · Pixel Graphics · Top-Down

NINJA GAIDEN: Ragebound
Shared: Action · Platformer · 2D Platformer

Webbed
Shared: 2D Platformer · Platformer · Pixel Graphics

ANTONBLAST
Shared: Action · 2D Platformer · 2D

Cuphead
Shared: Platformer · 2D · Action

Sonic Origins
Shared: Action · 2D Platformer · Platformer

VVVVVV
Shared: Platformer · 2D Platformer · Pixel Graphics

BALL x PIT
Shared: Action · Shoot 'Em Up · Top-Down Shooter

Downwell
Shared: Platformer · Action · 2D Platformer

Hotline Miami 2: Wrong Number
Shared: Action · Pixel Graphics · Top-Down