Games like Rustwing
Games like Rustwing include Enter the Gungeon, The Binding of Isaac: Rebirth, Vampire Survivors, Nuclear Throne, and FTL: Faster Than Light. We matched them by the tags players give Rustwing on Steam (Roguelike, Space, Bullet Hell, Action Roguelike, and Difficult): closest matches first, and among equally close ones the better-known games.

Enter the Gungeon
Shared: Roguelike · Bullet Hell · Action Roguelike

The Binding of Isaac: Rebirth
Shared: Roguelike · Action Roguelike · Difficult

Vampire Survivors
Shared: Bullet Hell · Action Roguelike · Pixel Graphics

Nuclear Throne
Shared: Roguelike · Action Roguelike · Bullet Hell

FTL: Faster Than Light
Shared: Roguelike · Space · Difficult

Megabonk
Shared: Roguelike · Action Roguelike · Bullet Hell

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

Noita
Shared: Roguelike · Difficult · Pixel Graphics

The Binding of Isaac
Shared: Roguelike · Action Roguelike · Difficult

Brotato
Shared: Roguelike · Bullet Hell · Action Roguelike

Death Must Die
Shared: Bullet Hell · Action Roguelike · Pixel Graphics

Dead Cells
Shared: Roguelike · Action Roguelike · Pixel Graphics

Halls of Torment
Shared: Action Roguelike · Bullet Hell · Roguelike

Hades
Shared: Action Roguelike · Roguelike · Indie

Risk of Rain (2013)
Shared: Roguelike · Action Roguelike · Indie

Tiny Rogues
Shared: Bullet Hell · Action Roguelike · Roguelike

Dungreed
Shared: Roguelike · Action Roguelike · Pixel Graphics

Dead Estate
Shared: Roguelike · Action Roguelike · Bullet Hell

Atomicrops
Shared: Roguelike · Bullet Hell · Action Roguelike

Star of Providence
Shared: Bullet Hell · Action Roguelike · Roguelike

BALL x PIT
Shared: Roguelike · Bullet Hell · Action Roguelike

Voidigo
Shared: Roguelike · Action Roguelike · Bullet Hell

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelike

Tower of Babel: Survivors of Chaos
Shared: Bullet Hell · Action Roguelike · Roguelike