Games like Toxastra
Games like Toxastra include Hotline Miami, RUINER, Hotline Miami 2: Wrong Number, Hades, and Bright Memory: Infinite. We matched them by the tags players give Toxastra on Steam (Action, Indie, Violent, Top-Down Shooter, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Hotline Miami
Shared: Action · Violent · Indie

RUINER
Shared: Action · Top-Down Shooter · Indie

Hotline Miami 2: Wrong Number
Shared: Action · Violent · Indie

Hades
Shared: Indie · Action · Roguelite

Bright Memory: Infinite
Shared: Action · Indie · Singleplayer

Wolcen: Lords of Mayhem
Shared: Action RPG · Action · Singleplayer

Yet Another Zombie Survivors
Shared: Top-Down Shooter · Indie · Roguelite

Ape Out
Shared: Violent · Indie · Action

SYNTHETIK: Legion Rising
Shared: Indie · Action · Top-Down Shooter

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

My Friend Pedro
Shared: Action · Indie · Violent

Skul: The Hero Slayer
Shared: Action · Indie · Singleplayer

Hades II
Shared: Action · Roguelite · Action RPG

Halo: Spartan Assault
Shared: Action · Top-Down Shooter · Sci-fi

Heat Signature
Shared: Indie · Action · Sci-fi

Warhammer 40,000: Inquisitor - Martyr
Shared: Action · Action RPG · Indie

Last Epoch
Shared: Action RPG · Action · Top-Down

Black Myth: Wukong
Shared: Action · Action RPG · Singleplayer

Soulstone Survivors
Shared: Action RPG · Action · Roguelite

Vampire Survivors
Shared: Indie · Roguelite · Singleplayer

The Ascent
Shared: Top-Down Shooter · Action · Indie

Alien Shooter
Shared: Action · Sci-fi · Singleplayer

Guardians of Orion (Phase 2)
Shared: Action · Indie · Top-Down Shooter

The Hong Kong Massacre
Shared: Action · Violent · Indie