Games like Solar Survivors
Games like Solar Survivors include Megabonk, Vampire Survivors, Soulstone Survivors, Death Must Die, and Brotato. We matched them by the tags players give Solar Survivors on Steam (Bullet Heaven, Action Roguelike, Bullet Hell, Roguelite, and Action): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Bullet Heaven · Action Roguelike · Roguelite

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Soulstone Survivors
Shared: Bullet Heaven · Action Roguelike · Bullet Hell

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

Brotato
Shared: Bullet Hell · Action Roguelike · Bullet Heaven

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

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Bullet Heaven · Roguelite

Nova Drift
Shared: Bullet Hell · Roguelite · Action Roguelike

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

BALL x PIT
Shared: Roguelite · Action · Bullet Hell

Rogue: Genesia
Shared: Bullet Heaven · Action Roguelike · Bullet Hell

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

Yet Another Zombie Survivors
Shared: Bullet Heaven · Action Roguelike · Roguelite

Hades
Shared: Action Roguelike · Roguelite · Action

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

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

The Spell Brigade
Shared: Bullet Heaven · Bullet Hell · Roguelite

Time Wasters
Shared: Bullet Heaven · Action Roguelike · Bullet Hell

Project Lazarus
Shared: Action Roguelike · Bullet Hell · Bullet Heaven

Conquest Dark
Shared: Bullet Heaven · Action Roguelike · Action

NIMRODS
Shared: Bullet Heaven · Action Roguelike · Bullet Hell

Spirit Hunters: Infinite Horde
Shared: Bullet Heaven · Action Roguelike · Roguelite

Hades II
Shared: Action · Roguelite · Action Roguelike

Arms of God
Shared: Bullet Heaven · Action Roguelike · Bullet Hell