Games like Marine Survivors
Games like Marine Survivors include Vampire Survivors, Death Must Die, Halls of Torment, Megabonk, and Skul: The Hero Slayer. We matched them by the tags players give Marine Survivors on Steam (Action Roguelike, Pixel Graphics, Bullet Hell, 2D, and Casual): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

Death Must Die
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

Halls of Torment
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

Megabonk
Shared: Action Roguelike · Bullet Hell · Roguelite

Skul: The Hero Slayer
Shared: Action Roguelike · Pixel Graphics · Action

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

Nuclear Throne
Shared: Action Roguelike · Pixel Graphics · Bullet Hell

Boneraiser Minions
Shared: Action Roguelike · Pixel Graphics · Bullet Hell

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

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

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

Rocket Rats
Shared: Action Roguelike · Pixel Graphics · Bullet Hell

Dungreed
Shared: Action Roguelike · Pixel Graphics · Action

Hero Siege
Shared: Pixel Graphics · Action Roguelike · Action RPG

Dead Cells
Shared: Action Roguelike · Pixel Graphics · 2D

Brotato
Shared: Action Roguelike · Bullet Hell · Singleplayer

Hades
Shared: Action Roguelike · Roguelite · Action

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

Star of Providence
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

Seraph's Last Stand
Shared: Action Roguelike · Bullet Hell · Casual

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Asgard's Fall — Viking Survivors
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

UnderMine
Shared: Action Roguelike · Pixel Graphics · Roguelite

Rogue Legacy
Shared: Action Roguelike · Action · 2D