Games like Alienzix
Games like Alienzix include Vampire Survivors, Hotline Miami, Hotline Miami 2: Wrong Number, LUFTRAUSERS, and UFO 50. We matched them by the tags players give Alienzix on Steam (Action, Indie, Arcade, 2D, and Retro): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Indie · 2D · Pixel Graphics

Hotline Miami
Shared: Action · Indie · Pixel Graphics

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

LUFTRAUSERS
Shared: Indie · Action · Arcade

UFO 50
Shared: Indie · Action · Retro

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

Timberman
Shared: Indie · Action · Pixel Graphics

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

Katana ZERO
Shared: Action · Pixel Graphics · Indie

SANABI
Shared: Action · Pixel Graphics · Indie

Trip to Vinelands
Shared: Action · Indie · Arcade

Pizza Tower
Shared: Indie · Fast-Paced · Action

Broforce
Shared: Action · 2D · Pixel Graphics

Exit the Gungeon
Shared: Indie · Action · Arcade

Super Meat Boy
Shared: Indie · 2D · Pixel Graphics

Downwell
Shared: Indie · Arcade · Pixel Graphics

Gravity Circuit
Shared: Action · Indie · 2D

UBERMOSH Vol.5
Shared: Action · Indie · Arcade

UBERMOSH
Shared: Action · Indie · Arcade

One Finger Death Punch
Shared: Action · Indie · Fast-Paced

Sonic Mania
Shared: 2D · Retro · Action

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

UBERMOSH Vol.3
Shared: Action · Indie · Arcade

Streets of Rage 4
Shared: Action · Indie · 2D