Games like HeroTail: Survivors - Warlock
Games like HeroTail: Survivors - Warlock include Vampire Survivors, Megabonk, Halls of Torment, Hades, and Deep Rock Galactic: Survivor. We matched them by the tags players give HeroTail: Survivors - Warlock on Steam (Action Roguelike, Bullet Hell, Roguelite, Auto Battler, and PvE): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Megabonk
Shared: Action Roguelike · Roguelite · Bullet Hell

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

Hades
Shared: Action Roguelike · Roguelite · Action

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

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

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

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

Shape of Dreams
Shared: Action Roguelike · Roguelite · PvE

Magicraft
Shared: Action Roguelike · Bullet Hell · Roguelite

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Roguelike

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelike

Nomad Survival
Shared: Action Roguelike · Bullet Hell · Roguelite

The Spell Brigade
Shared: Roguelite · Bullet Hell · Action Roguelike

Rogue: Genesia
Shared: Bullet Hell · Action Roguelike · Roguelite

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

Hades II
Shared: Roguelite · Action Roguelike · Action

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

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

Risk of Rain 2
Shared: Action Roguelike · Roguelite · Roguelike

Atomicrops
Shared: Bullet Hell · Action Roguelike · Action

Noobs Want to Live
Shared: Bullet Hell · Action Roguelike · Roguelike

Tiny Rogues
Shared: Action Roguelike · Bullet Hell · Roguelite

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