Games like I HATE (other) Animals!
Games like I HATE (other) Animals! include Vampire Survivors, Death Must Die, Halls of Torment, 20 Minutes Till Dawn, and Megabonk. We matched them by the tags players give I HATE (other) Animals! on Steam (Bullet Hell, RPG, Shoot 'Em Up, Roguelite, and Action): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Roguelite · 2D

Death Must Die
Shared: Bullet Hell · Roguelite · RPG

Halls of Torment
Shared: Bullet Hell · Roguelite · RPG

20 Minutes Till Dawn
Shared: Bullet Hell · Roguelite · Shoot 'Em Up

Megabonk
Shared: Bullet Hell · Roguelite · Loot

BALL x PIT
Shared: Bullet Hell · Roguelite · Action

I Am Legion: Stand Survivors
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

Last Epoch
Shared: RPG · Loot · Action RPG

Hero Siege
Shared: RPG · Action RPG · Action

Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

Soulstone Survivors
Shared: Bullet Hell · Roguelite · RPG

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

Star of Providence
Shared: Bullet Hell · Roguelite · Shoot 'Em Up

Boneraiser Minions
Shared: Bullet Hell · Roguelite · 2D

Beautiful Mystic Survivors
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

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

Nordic Ashes: Survivors of Ragnarok
Shared: Bullet Hell · Roguelite · RPG

Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Bullet Hell · Action

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

Cultivation Story: Reincarnation
Shared: RPG · Bullet Hell · Roguelite

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

Cat Quest
Shared: RPG · Action · Cute

Twilight Survivors
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

The Slormancer
Shared: RPG · Loot · Action RPG