Games like Tartaron
Games like Tartaron include Vampire Survivors, Timberman, One Finger Death Punch, Planes, Bullets and Vodka, and Cyberhunt. We matched them by the tags players give Tartaron on Steam (Casual, Action, Top-Down Shooter, Arena Shooter, and Arcade): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Casual · Singleplayer · Action

Timberman
Shared: Casual · Action · Arcade

One Finger Death Punch
Shared: Action · 2D Fighter · Casual

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

Cyberhunt
Shared: Action · Casual · Arcade

Ninja Kiwi Archive
Shared: Casual · Action · Arcade

Hotline Miami
Shared: Action · Indie · Pixel Graphics

BALL x PIT
Shared: Action · Arcade · Top-Down Shooter

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

SNKRX
Shared: Top-Down Shooter · Arena Shooter · Arcade

12 is Better Than 6
Shared: Action · Top-Down Shooter · Shooter

MARVEL Tōkon: Fighting Souls
Shared: Action · Casual · 2D Fighter

Halo: Spartan Assault
Shared: Action · Top-Down Shooter · Singleplayer

Iron Snout
Shared: Action · 2D Fighter · Singleplayer

Kill The Crows
Shared: Action · Top-Down Shooter · Arcade

DJMAX RESPECT V
Shared: Casual · Action · Singleplayer

One Finger Death Punch 2
Shared: Action · Casual · Arcade

Bit Blaster XL
Shared: Arcade · Action · Casual

Kung Fury: Street Rage - Ultimate Edition
Shared: Action · Arcade · Indie

State of Anarchy: Master of Mayhem
Shared: Action · Top-Down Shooter · Casual

Broforce
Shared: Action · 2D · Pixel Graphics

A Dance of Fire and Ice
Shared: Singleplayer · Arcade · Casual

Rocket Rats
Shared: Casual · Action · Singleplayer

WAVESHAPER
Shared: Casual · Action · Minimalist