Games like SeaQuestDungeon
Games like SeaQuestDungeon include Vampire Survivors, Enter the Gungeon, Nuclear Throne, BALL x PIT, and Nova Drift. We matched them by the tags players give SeaQuestDungeon on Steam (Action Roguelike, Bullet Hell, Shoot 'Em Up, Twin Stick Shooter, and Roguelite): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

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

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Roguelike

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

Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Action Roguelike

Star of Providence
Shared: Bullet Hell · Action Roguelike · Roguelite

Megabonk
Shared: Action Roguelike · Bullet Hell · Roguelite

Voidigo
Shared: Action Roguelike · Twin Stick Shooter · Bullet Hell

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

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

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Shoot 'Em Up

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

Dead Estate
Shared: Action Roguelike · Twin Stick Shooter · Bullet Hell

Time Wasters
Shared: Action Roguelike · Bullet Hell · Twin Stick Shooter

I Am Legion: Stand Survivors
Shared: Action Roguelike · Bullet Hell · Shoot 'Em Up

Roboquest
Shared: Action Roguelike · Roguelite · Shooter

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

Hades
Shared: Action Roguelike · Roguelite · Roguelike

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelike

Risk of Rain 2
Shared: Action Roguelike · Roguelite · Roguelike

Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite

Atomicrops
Shared: Bullet Hell · Action Roguelike · Roguelike

Slime 3K: Rise Against Despot
Shared: Action Roguelike · Bullet Hell · Roguelite

Dungreed
Shared: Action Roguelike · Roguelite · Roguelike