Games like Error 259
Games like Error 259 include Vampire Survivors, Skul: The Hero Slayer, BALL x PIT, Dead Cells, and Nuclear Throne. We matched them by the tags players give Error 259 on Steam (Action, Strategy, Action Roguelike, Roguelike, and Shooter): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Roguelite · Roguelike

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

BALL x PIT
Shared: Action · Roguelite · Roguelike

Dead Cells
Shared: Roguelike · Action Roguelike · Roguelite

Nuclear Throne
Shared: Action Roguelike · Roguelike · Action

Megabonk
Shared: Action Roguelike · Roguelike · Roguelite

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

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

Sephiria
Shared: Action Roguelike · Roguelike · Roguelite

Hades
Shared: Action Roguelike · Action · Roguelite

Halls of Torment
Shared: Action Roguelike · Roguelite · Action

Everything is Crab: The Animal Evolution Roguelite
Shared: Action Roguelike · Strategy · Roguelite

Star of Providence
Shared: Action Roguelike · Roguelite · Action

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

Dungreed
Shared: Action Roguelike · Action · Roguelike

Cluckmech Oasis
Shared: Strategy · Roguelike · Action

Streets of Rogue
Shared: Action Roguelike · Roguelite · Action

Nova Drift
Shared: Action Roguelike · Shoot 'Em Up · Roguelite

Hades II
Shared: Action · Roguelike · Action Roguelike

暖雪 Warm Snow
Shared: Action Roguelike · Roguelite · Roguelike

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

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

Rogue Legacy
Shared: Roguelike · Action · Action Roguelike

Gunfire Reborn
Shared: Roguelike · Roguelite · Action