Games like Ashbound Expanse
Games like Ashbound Expanse include Risk of Rain 2, Hades, Megabonk, Crab Champions, and The Binding of Isaac: Rebirth. We matched them by the tags players give Ashbound Expanse on Steam (Third-Person Shooter, Action Roguelike, 3D Platformer, Roguelike, and Class-Based): closest matches first, and among equally close ones the better-known games.

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

Hades
Shared: Action Roguelike · Roguelike · Roguelite

Megabonk
Shared: Action Roguelike · Roguelike · Roguelite

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

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

LORT
Shared: Action Roguelike · Third-Person Shooter · Roguelike

Hades II
Shared: Roguelike · Action Roguelike · Roguelite

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

Vampire Survivors
Shared: Action Roguelike · Roguelike · Roguelite

Sephiria
Shared: Action Roguelike · Roguelike · Roguelite

Vellum
Shared: Action Roguelike · Third-Person Shooter · Roguelike

Gunfire Reborn
Shared: Roguelike · Action Roguelike · Roguelite

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

Nuclear Throne
Shared: Action Roguelike · Roguelike · Indie

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

Terminull Brigade™
Shared: Third-Person Shooter · Action Roguelike · Shooter

Grand Theft Auto V Legacy
Shared: Third-Person Shooter · Shooter · Third Person

Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite

Returnal™
Shared: Roguelike · Third-Person Shooter · Action Roguelike

Rogue Legacy
Shared: Action Roguelike · Roguelike · Indie

STAR WARS™ Battlefront™ II
Shared: Third-Person Shooter · Shooter · Combat

Roboquest
Shared: Action Roguelike · Shooter · Roguelite

Enter the Gungeon
Shared: Action Roguelike · Roguelike · Indie

Max Payne 3
Shared: Third-Person Shooter · Shooter · Action