Games like Isekai Survivors
Games like Isekai Survivors include Vampire Survivors, Brotato, Hades, Halls of Torment, and The Binding of Isaac: Rebirth. We matched them by the tags players give Isekai Survivors on Steam (Singleplayer, Replay Value, Action Roguelike, Bullet Hell, and Roguelite): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Brotato
Shared: Singleplayer · Action Roguelike · Bullet Hell

Hades
Shared: Action Roguelike · Roguelite · Singleplayer

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

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Replay Value · Singleplayer

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

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Hades II
Shared: Roguelite · Action Roguelike · Roguelike

Megabonk
Shared: Action Roguelike · Roguelite · Bullet Hell

The Binding of Isaac
Shared: Action Roguelike · Replay Value · Roguelike

Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite

Tiny Rogues
Shared: Action Roguelike · Replay Value · Bullet Hell

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

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

Hero Siege
Shared: Action Roguelike · Action RPG · RPG

Sephiria
Shared: Action Roguelike · Roguelite · Roguelike

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

Magicraft
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

Dungreed
Shared: Action Roguelike · Roguelite · Singleplayer

Rogue Legacy
Shared: Action Roguelike · Singleplayer · Roguelike