Games like Protean Fox
Games like Protean Fox include Vampire Survivors, 暖雪 Warm Snow, Enter the Gungeon, Halls of Torment, and Death Must Die. We matched them by the tags players give Protean Fox on Steam (Action Roguelike, Roguelite, Bullet Hell, Creature Collector, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

暖雪 Warm Snow
Shared: Action Roguelike · Roguelite · Action-Adventure

Enter the Gungeon
Shared: Action Roguelike · Bullet Hell · 2D

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

Death Must Die
Shared: Action Roguelike · Roguelite · Bullet Hell

Megabonk
Shared: Action Roguelike · Roguelite · Bullet Hell

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

Tiny Rogues
Shared: Action Roguelike · Bullet Hell · Roguelite

Skul: The Hero Slayer
Shared: Action Roguelike · Roguelite · 2D

Rocket Rats
Shared: Action Roguelike · Bullet Hell · Roguelite

SULFUR
Shared: Action Roguelike · Roguelite · Shooter

Hades
Shared: Action Roguelike · Roguelite · Indie

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Roguelite

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Roguelite

Pass the Fear
Shared: Action Roguelike · Roguelite · Bullet Hell

Nova Drift
Shared: Roguelite · Bullet Hell · Action Roguelike

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

I Am Legion: Stand Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

Nordic Ashes: Survivors of Ragnarok
Shared: Action Roguelike · Bullet Hell · Roguelite

Roboquest
Shared: Action Roguelike · Roguelite · Shooter

Magicraft
Shared: Action Roguelike · Roguelite · Bullet Hell

Blazing Beaks
Shared: Action Roguelike · Roguelite · Shooter

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Roguelite · Bullet Hell

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite