Games like Summoner'sSurvival
Games like Summoner'sSurvival include 20 Minutes Till Dawn, Vampire Survivors, BALL x PIT, Death Must Die, and Slime 3K: Rise Against Despot. We matched them by the tags players give Summoner'sSurvival on Steam (2D Platformer, Hack and Slash, Shoot 'Em Up, Bullet Hell, and Top-Down Shooter): closest matches first, and among equally close ones the better-known games.

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

Vampire Survivors
Shared: Bullet Hell · Roguelite · 2D

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

Death Must Die
Shared: Bullet Hell · Roguelite · Hack and Slash

Slime 3K: Rise Against Despot
Shared: Bullet Hell · Roguelite · Shoot 'Em Up

Asgard's Fall — Viking Survivors
Shared: Bullet Hell · Roguelite · Hack and Slash

Nova Drift
Shared: Shoot 'Em Up · Bullet Hell · Roguelite

Star of Providence
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

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

Army of Ruin
Shared: Bullet Hell · Hack and Slash · Top-Down Shooter

Cluckmech Oasis
Shared: Top-Down Shooter · Roguelite · Cute

Apocalypse Party
Shared: Top-Down Shooter · Bullet Hell · Casual

Rocket Rats
Shared: Bullet Hell · Roguelite · Casual

Larva Mortus
Shared: Hack and Slash · Bullet Hell · Shoot 'Em Up

Turnip Boy Robs a Bank
Shared: Shoot 'Em Up · Top-Down Shooter · Hack and Slash

Halls of Torment
Shared: Bullet Hell · Roguelite · Hack and Slash

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

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

X Invader
Shared: Shoot 'Em Up · Bullet Hell · Hack and Slash

Black Market of Bulletphilia ~ 100th Black Market.
Shared: Shoot 'Em Up · Shooter · 2D

Time Wasters
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

Bot Vice
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter

Nuclear Throne
Shared: Bullet Hell · Roguelite · Top-Down Shooter

Insect Swarm
Shared: Shoot 'Em Up · Shooter · Top-Down Shooter