Games like BrutalAliens
Games like BrutalAliens include Transistor, Black Mesa, Hotline Miami, Hades, and Bastion. We matched them by the tags players give BrutalAliens on Steam (Action, Indie, Strategy, Singleplayer, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Transistor
Shared: Indie · Great Soundtrack · Sci-fi

Black Mesa
Shared: Action · Sci-fi · Singleplayer

Hotline Miami
Shared: Action · Indie · Great Soundtrack

Hades
Shared: Indie · Action · Singleplayer

Bastion
Shared: Indie · Action · Great Soundtrack

FTL: Faster Than Light
Shared: Strategy · Indie · Sci-fi

Half-Life 2
Shared: Action · Sci-fi · Singleplayer

Command & Conquer Red Alert™ 2 and Yuri’s Revenge™
Shared: Action · Strategy · Singleplayer

Warhammer 40,000: Dawn of War III
Shared: Strategy · Action · Sci-fi

Bright Memory: Infinite
Shared: Action · Indie · Singleplayer

ENDLESS Space™ 2
Shared: Strategy · Sci-fi · Action

Mount & Blade II: Bannerlord
Shared: Strategy · Action · Singleplayer

STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · Sci-fi · Singleplayer

Warhammer 40,000: Mechanicus
Shared: Strategy · Sci-fi · Great Soundtrack

Project Wingman
Shared: Action · Indie · Singleplayer

Orcs Must Die!
Shared: Action · Strategy · Indie

Defense Grid: The Awakening
Shared: Strategy · Indie · Singleplayer

Hollow Knight: Silksong
Shared: Indie · Great Soundtrack · Singleplayer

My Friend Pedro
Shared: Action · Indie · Singleplayer

GemCraft - Chasing Shadows
Shared: Indie · Strategy · Action

Party Hard
Shared: Strategy · Indie · Action

Gunpoint
Shared: Indie · Action · Singleplayer

Infested Planet
Shared: Action · Strategy · Indie

Waveform
Shared: Indie · Singleplayer · Strategy