Games like The Mindvasion
Games like The Mindvasion include Vampire Survivors, Death Must Die, Skul: The Hero Slayer, Megabonk, and Enter the Gungeon. We matched them by the tags players give The Mindvasion on Steam (Casual, Action, Bullet Hell, Action Roguelike, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Action Roguelike · Pixel Graphics

Death Must Die
Shared: Bullet Hell · Action Roguelike · Pixel Graphics

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

Megabonk
Shared: Action Roguelike · Bullet Hell · Action

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

Halls of Torment
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

Boneraiser Minions
Shared: Bullet Hell · Action Roguelike · Pixel Graphics

BlazBlue Entropy Effect
Shared: Action · Action Roguelike · 2D

Hero Siege
Shared: Pixel Graphics · Action Roguelike · Hack and Slash

Hades
Shared: Action Roguelike · Action · Hack and Slash

Rocket Rats
Shared: Casual · Action Roguelike · Bullet Hell

Desktop Survivors 98
Shared: Action · Bullet Hell · Casual

Asgard's Fall — Viking Survivors
Shared: Bullet Hell · Casual · Action Roguelike

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

Nuclear Throne
Shared: Action Roguelike · Pixel Graphics · Bullet Hell

Noobs Want to Live
Shared: Bullet Hell · Action · Pixel Graphics

Dead Cells
Shared: Action Roguelike · Pixel Graphics · 2D

Timberman
Shared: Casual · Action · Pixel Graphics

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

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

Gensokyo Night Festival
Shared: Action · Casual · Pixel Graphics

20 Minutes Till Dawn
Shared: Bullet Hell · Action Roguelike · Pixel Graphics

Dungreed
Shared: Action Roguelike · Action · Pixel Graphics

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