Games like Oh No! I’m Surrounded by Polygons!
Games like Oh No! I’m Surrounded by Polygons! include Vampire Survivors, Megabonk, Brotato, Death Must Die, and Soulstone Survivors. We matched them by the tags players give Oh No! I’m Surrounded by Polygons! on Steam (Casual, Action Roguelike, Bullet Hell, Bullet Heaven, and Roguelite): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Megabonk
Shared: Action Roguelike · Bullet Heaven · Roguelite

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelike

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

Soulstone Survivors
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

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

BALL x PIT
Shared: Bullet Hell · Roguelite · Action

Tower of Babel: Survivors of Chaos
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

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

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

Hades
Shared: Action Roguelike · Roguelite · Action

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

The Spell Brigade
Shared: Bullet Heaven · Bullet Hell · Roguelite

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

Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite

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

Astro Prospector
Shared: Casual · Action Roguelike · Roguelite

Yet Another Zombie Survivors
Shared: Action Roguelike · Bullet Heaven · Roguelite

Cursorblade
Shared: Action Roguelike · Bullet Hell · Bullet Heaven

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

Jotunnslayer: Hordes of Hel
Shared: Action Roguelike · Bullet Heaven · Roguelite

Time Wasters
Shared: Action Roguelike · Bullet Heaven · Bullet Hell