Games like Risk System
Games like Risk System include Broforce, UFO 50, Hotline Miami, Skul: The Hero Slayer, and Shovel Knight: Treasure Trove. We matched them by the tags players give Risk System on Steam (Indie, Action, Shoot 'Em Up, Retro, and 2D): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · Pixel Graphics · 2D

UFO 50
Shared: Indie · Action · Retro

Hotline Miami
Shared: Action · Indie · Pixel Graphics

Skul: The Hero Slayer
Shared: Indie · Action · Pixel Graphics

Shovel Knight: Treasure Trove
Shared: Indie · Retro · Pixel Graphics

LUFTRAUSERS
Shared: Indie · Action · Shoot 'Em Up

SANABI
Shared: Action · Pixel Graphics · Indie

Cyberhunt
Shared: Indie · Action · Shoot 'Em Up

Blazing Chrome
Shared: Action · Retro · Indie

ZeroRanger
Shared: Indie · Shoot 'Em Up · Action

Katana ZERO
Shared: Action · Pixel Graphics · Indie

Vampire Survivors
Shared: Indie · Pixel Graphics · 2D

Huntdown
Shared: Action · Pixel Graphics · Shoot 'Em Up

The Messenger
Shared: Retro · Indie · Pixel Graphics

Hotline Miami 2: Wrong Number
Shared: Action · Pixel Graphics · Indie

Gato Roboto
Shared: Indie · Action · Pixel Graphics

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

Out There Somewhere
Shared: Indie · Pixel Graphics · 2D

Duck Game
Shared: Action · Pixel Graphics · Indie

Axiom Verge
Shared: Indie · Action · Pixel Graphics

Talented
Shared: Shoot 'Em Up · Indie · Pixel Graphics

Valfaris
Shared: Indie · Action · 2D

Bloodstained: Curse of the Moon
Shared: Action · Retro · Pixel Graphics

Gravity Circuit
Shared: Action · Indie · 2D