Games like The Swarm 2
Games like The Swarm 2 include Vampire Survivors, BALL x PIT, 20 Minutes Till Dawn, Deep Rock Galactic: Survivor, and Enter the Gungeon. We matched them by the tags players give The Swarm 2 on Steam (Bullet Hell, Action, Action Roguelike, Underwater, and PvE): closest matches first, and among equally close ones the better-known games.
Vampire Survivors
Shared: Bullet Hell · Action Roguelike · 2D
BALL x PIT
Shared: Action · Bullet Hell · Action Roguelike
20 Minutes Till Dawn
Shared: Bullet Hell · Action Roguelike · Shoot 'Em Up
Deep Rock Galactic: Survivor
Shared: Action Roguelike · Bullet Hell · PvE
Enter the Gungeon
Shared: Bullet Hell · Action Roguelike · Action
Skul: The Hero Slayer
Shared: Action · Action Roguelike · 2D
Nova Drift
Shared: Bullet Hell · Action Roguelike · Shoot 'Em Up
Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Action
Star of Providence
Shared: Bullet Hell · Action Roguelike · Action
Windowkill
Shared: Action · Bullet Hell · Action Roguelike
Brotato
Shared: Bullet Hell · Action Roguelike · Singleplayer
Megabonk
Shared: Action Roguelike · Bullet Hell · Action
Halls of Torment
Shared: Bullet Hell · Action Roguelike · Action
I Am Legion: Stand Survivors
Shared: Bullet Hell · Action Roguelike · Shoot 'Em Up
Death Must Die
Shared: Bullet Hell · Action Roguelike · Action
Rogue: Genesia
Shared: Bullet Hell · Action Roguelike · PvE
Rocket Rats
Shared: Bullet Hell · Action Roguelike · Action
Time Wasters
Shared: Bullet Hell · Action Roguelike · 2D
Hades
Shared: Action Roguelike · Action · Singleplayer
Rabbit and Steel
Shared: Bullet Hell · Action Roguelike · 2D
Glyphica: Typing Survival
Shared: Action Roguelike · Bullet Hell · Action
Voidigo
Shared: Action Roguelike · Bullet Hell · Shoot 'Em Up
Relic Hunters Zero: Remix
Shared: Action · Action Roguelike · Bullet Hell
The Void Rains Upon Her Heart
Shared: Bullet Hell · Action Roguelike · Action