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

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

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

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

Nuclear Throne
Shared: Action Roguelike · Indie · Pixel Graphics

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

Megabonk
Shared: Action Roguelike · Indie · Bullet Hell

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

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

Risk of Rain 2
Shared: Action Roguelike · Action · Multiplayer

Dungreed
Shared: Action Roguelike · Pixel Graphics · Action

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

Streets of Rogue
Shared: Action Roguelike · Pixel Graphics · Roguelite

Risk of Rain (2013)
Shared: Action Roguelike · Indie · Action

Hades
Shared: Action Roguelike · Indie · Action

Hero Siege
Shared: Action Roguelike · Pixel Graphics · Indie

Star of Providence
Shared: Action Roguelike · Bullet Hell · Indie

Wizard of Legend
Shared: Action Roguelike · Pixel Graphics · Action

Broforce
Shared: Action · Pixel Graphics · 2D

Brotato
Shared: Action Roguelike · Bullet Hell · Multiplayer

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

Gunfire Reborn
Shared: Roguelite · Indie · Action Roguelike

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

Heroes of Hammerwatch
Shared: Action Roguelike · Roguelite · Pixel Graphics

Rogue Legacy
Shared: Indie · Action Roguelike · Action