Games like The Dream Within
Games like The Dream Within include Terraria, ELDEN RING, Forager, Don't Starve Together, and DARK SOULS™ III. We matched them by the tags players give The Dream Within on Steam (Open World Survival Craft, Souls-like, Sandbox, Difficult, and Farming Sim): closest matches first, and among equally close ones the better-known games.

Terraria
Shared: Open World Survival Craft · Sandbox · 2D

ELDEN RING
Shared: Souls-like · Difficult · Action RPG

Forager
Shared: Open World Survival Craft · Sandbox · Farming Sim

Don't Starve Together
Shared: Open World Survival Craft · Sandbox · Difficult

DARK SOULS™ III
Shared: Souls-like · Difficult · RPG

Stardew Valley
Shared: Farming Sim · Sandbox · Pixel Graphics

Starbound
Shared: Open World Survival Craft · Sandbox · Pixel Graphics

Black Myth: Wukong
Shared: Souls-like · Action RPG · RPG

DARK SOULS™ II: Scholar of the First Sin
Shared: Souls-like · Difficult · RPG

Don't Starve
Shared: Open World Survival Craft · Sandbox · Crafting

DARK SOULS™: REMASTERED
Shared: Souls-like · Difficult · RPG

DARK SOULS™ II
Shared: Souls-like · Difficult · Action RPG

Salt and Sanctuary
Shared: Souls-like · Difficult · 2D

Hollow Knight
Shared: Souls-like · Difficult · 2D

Necesse
Shared: Open World Survival Craft · Sandbox · Pixel Graphics

Rubinite
Shared: Difficult · Souls-like · 2D

Blasphemous
Shared: Souls-like · 2D · Difficult

Valheim
Shared: Open World Survival Craft · Difficult · Sandbox

Rust
Shared: Open World Survival Craft · Sandbox · Crafting

Lords Of The Fallen™ 2014
Shared: Souls-like · Difficult · Action RPG

Romestead
Shared: 2D · RPG · Top-Down

Hollow Knight: Silksong
Shared: Difficult · Souls-like · 2D

Mortal Shell II
Shared: Souls-like · Action RPG · Difficult

Stoneshard
Shared: Open World Survival Craft · RPG · Pixel Graphics