Games like Ashworld
Games like Ashworld include Rain World, Terraria, Skul: The Hero Slayer, SANABI, and BlazBlue Entropy Effect. We matched them by the tags players give Ashworld on Steam (Adventure, Action, Pixel Graphics, Post-apocalyptic, and Open World): closest matches first, and among equally close ones the better-known games.

Rain World
Shared: Pixel Graphics · Indie · Adventure

Terraria
Shared: Adventure · Pixel Graphics · 2D

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · Indie

SANABI
Shared: Pixel Graphics · Action · Adventure

BlazBlue Entropy Effect
Shared: Action · Pixel Graphics · 2D

Dead Cells
Shared: Adventure · Pixel Graphics · 2D

The Final Station
Shared: Pixel Graphics · Post-apocalyptic · Adventure

Hollow Knight
Shared: Platformer · Indie · Adventure

Days Gone
Shared: Open World · Post-apocalyptic · Action

Celeste
Shared: Pixel Graphics · Indie · Platformer

Shovel Knight: Treasure Trove
Shared: Pixel Graphics · Adventure · Platformer

Dungeon Munchies
Shared: Action · Adventure · Pixel Graphics

Noita
Shared: Pixel Graphics · Indie · Open World

Fallout 4
Shared: Post-apocalyptic · Open World · Adventure

Rise of the Tomb Raider™
Shared: Adventure · Action · Open World

ZERO Sievert
Shared: Post-apocalyptic · Pixel Graphics · Open World

Hyper Light Drifter
Shared: Pixel Graphics · Adventure · Action

The Escapists
Shared: Pixel Graphics · Action · Indie

Forager
Shared: Pixel Graphics · Adventure · Indie

Deadlight
Shared: Action · Adventure · Post-apocalyptic

Hollow Knight: Silksong
Shared: Indie · Adventure · 2D

Jump King
Shared: Adventure · Pixel Graphics · Indie

Don't Starve Together
Shared: Adventure · Open World · Survival

Metro Exodus
Shared: Post-apocalyptic · Open World · Action