Games like The Only Droid
Games like The Only Droid include Risk of Rain 2, Megabonk, Vampire Survivors, Hades, and Brotato. We matched them by the tags players give The Only Droid on Steam (Action Roguelike, Action, Roguelike, Roguelite, and Bullet Hell): closest matches first, and among equally close ones the better-known games.

Risk of Rain 2
Shared: Action Roguelike · Third-Person Shooter · Roguelike

Megabonk
Shared: Action Roguelike · Roguelike · Roguelite

Vampire Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

Hades
Shared: Action Roguelike · Roguelite · Action

Brotato
Shared: Roguelike · Action Roguelike · Bullet Hell

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

Nuclear Throne
Shared: Action Roguelike · Roguelike · Action

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

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

Hades II
Shared: Action · Roguelike · Roguelite

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

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

Tower of Babel: Survivors of Chaos
Shared: Action Roguelike · Roguelite · Roguelike

Returnal™
Shared: Action · Roguelike · Bullet Hell

Gunfire Reborn
Shared: Roguelike · Roguelite · Action

Dungreed
Shared: Action Roguelike · Roguelike · Action

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

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

Crab Champions
Shared: Action Roguelike · Roguelike · Third-Person Shooter

BALL x PIT
Shared: Action · Roguelite · Action Roguelike

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

Magicraft
Shared: Action Roguelike · Roguelite · Roguelike

Ravenswatch
Shared: Action Roguelike · Roguelike · Action

Atomicrops
Shared: Action · Roguelike · Action Roguelike