Games like SuperSubmarine
Games like SuperSubmarine include Planes, Bullets and Vodka, Bit Blaster XL, Furi, Grand Theft Auto V Legacy, and Revolution Ace. We matched them by the tags players give SuperSubmarine on Steam (Casual, Action, Shooter, Bullet Hell, and Shoot 'Em Up): closest matches first, and among equally close ones the better-known games.

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

Bit Blaster XL
Shared: Bullet Hell · Shooter · Shoot 'Em Up

Furi
Shared: Bullet Hell · Shoot 'Em Up · Action

Grand Theft Auto V Legacy
Shared: Action · Shooter · Third Person

Revolution Ace
Shared: Action · Shoot 'Em Up · Bullet Hell

Vampire Survivors
Shared: Bullet Hell · Casual · Action

STAR WARS™ Battlefront™ II
Shared: Shooter · Action · Sci-fi

Half-Life
Shared: Shooter · Action · 1990's

Sky Force Reloaded
Shared: Shoot 'Em Up · Bullet Hell · Action

Warhammer 40,000: Space Marine - Anniversary Edition
Shared: Action · Third Person · Shooter

Cyberhunt
Shared: Action · Casual · Shoot 'Em Up

HELLDIVERS™ 2
Shared: Shooter · Action · Sci-fi

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Shooter · Sci-fi

KovaaK's
Shared: Action · Shooter · Indie

Ikaruga
Shared: Bullet Hell · Shoot 'Em Up · Action

Half-Life 2
Shared: Action · Shooter · Sci-fi

RADical ROACH Remastered
Shared: Action · Casual · Shoot 'Em Up

LUFTRAUSERS
Shared: Action · Bullet Hell · Shoot 'Em Up

Greedland
Shared: Shoot 'Em Up · Bullet Hell · Action

DRAINUS
Shared: Action · Shooter · Shoot 'Em Up

BALL x PIT
Shared: Action · Bullet Hell · Shoot 'Em Up

Black Mesa
Shared: Action · Shooter · Sci-fi

Bright Memory: Infinite
Shared: Action · Shooter · Indie

Half-Life: Opposing Force
Shared: Action · Shooter · Sci-fi