Games like Serpent Squad
Games like Serpent Squad include Vampire Survivors, Megabonk, BALL x PIT, Nuclear Throne, and Halls of Torment. We matched them by the tags players give Serpent Squad on Steam (Indie, Roguelike, Strategy, Roguelite, and Action Roguelike): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Roguelite · Indie

Megabonk
Shared: Roguelike · Indie · Action Roguelike

BALL x PIT
Shared: Roguelite · Roguelike · Action Roguelike

Nuclear Throne
Shared: Roguelike · Indie · Action Roguelike

Halls of Torment
Shared: Roguelite · Action Roguelike · Roguelike

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

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

Hades
Shared: Indie · Roguelite · Action Roguelike

Enter the Gungeon
Shared: Roguelike · Action Roguelike · Indie

Brotato
Shared: Roguelike · Action Roguelike · Bullet Hell

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

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

Asgard's Fall — Viking Survivors
Shared: Action Roguelike · Roguelite · Indie

Astro Prospector
Shared: Roguelike · Roguelite · Casual

Realm of the Mad God Exalt
Shared: Roguelike · Action Roguelike · Bullet Hell

Balatro
Shared: Roguelike · Strategy · Indie

Apocalypse Party
Shared: Casual · Action Roguelike · Roguelite

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

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

Star of Providence
Shared: Roguelite · Indie · Action Roguelike

Nova Drift
Shared: Roguelite · Action Roguelike · Bullet Hell

Boneraiser Minions
Shared: Action Roguelike · Roguelite · Indie

Dungreed
Shared: Roguelike · Action Roguelike · Indie

Arrow a Row
Shared: Roguelike · Roguelite · Strategy