Games like Pixelpunk XL
Games like Pixelpunk XL include Hades, The Binding of Isaac, The Binding of Isaac: Rebirth, Vampire Survivors, and Skul: The Hero Slayer. We matched them by the tags players give Pixelpunk XL on Steam (Action Roguelike, Action, Indie, 6DOF, and Procedural Generation): closest matches first, and among equally close ones the better-known games.

Hades
Shared: Action Roguelike · Indie · Action

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

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

Vampire Survivors
Shared: Action Roguelike · Indie · Roguelite

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

EVERSPACE™
Shared: Action Roguelike · Action · Indie

Megabonk
Shared: Action Roguelike · Indie · Roguelite

Black Mesa
Shared: Action · Singleplayer · FPS

Gunfire Reborn
Shared: Roguelite · Indie · Action

Heavy Bullets
Shared: Action · Indie · Action Roguelike

Ziggurat
Shared: Action · Action Roguelike · Roguelite

Half-Life 2
Shared: Action · Singleplayer · FPS

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

Post Void
Shared: Action Roguelike · Action · Singleplayer

Roboquest
Shared: Action Roguelike · Roguelite · Action

Bright Memory: Infinite
Shared: Action · Indie · Singleplayer

COMPOUND
Shared: Action · Indie · Roguelite

BPM: BULLETS PER MINUTE
Shared: Action · Indie · Action Roguelike

BioShock Infinite
Shared: Action · Singleplayer · Shooter

UnderMine
Shared: Action Roguelike · Indie · Action

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

KovaaK's
Shared: Action · Indie · Shooter

SUPERHOT
Shared: Action · Indie · Singleplayer

DOOM
Shared: Action · Shooter · FPS