Games like Einherjar's Ascent
Games like Einherjar's Ascent include Vampire Survivors, Megabonk, BALL x PIT, Halls of Torment, and Hades. We matched them by the tags players give Einherjar's Ascent on Steam (Action Roguelike, Bullet Hell, Roguelite, Roguelike, and Action): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Megabonk
Shared: Action Roguelike · Roguelite · Roguelike

BALL x PIT
Shared: Roguelite · Bullet Hell · Action

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

Hades
Shared: Action Roguelike · Roguelite · Action

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

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

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

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelike

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite

Nuclear Throne
Shared: Action Roguelike · Roguelike · Bullet Hell

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

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

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

Hades II
Shared: Roguelite · Roguelike · Action

Rogue Legacy
Shared: Action Roguelike · Roguelike · Action

Rocket Rats
Shared: Action Roguelike · Bullet Hell · Roguelite

Dungreed
Shared: Action Roguelike · Roguelite · Roguelike

Realm of the Mad God Exalt
Shared: Bullet Hell · Roguelike · Action Roguelike

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

Sephiria
Shared: Action Roguelike · Roguelite · Roguelike

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

Nova Drift
Shared: Bullet Hell · Roguelite · Action Roguelike