Games like Corner World
Games like Corner World include Terraria, Stardew Valley, People Playground, Forager, and Graveyard Keeper. We matched them by the tags players give Corner World on Steam (Casual, Sandbox, 2D, Pixel Graphics, and Building): closest matches first, and among equally close ones the better-known games.

Terraria
Shared: Sandbox · 2D · Pixel Graphics

Stardew Valley
Shared: Pixel Graphics · Sandbox · Crafting

People Playground
Shared: Sandbox · 2D · Singleplayer

Forager
Shared: Pixel Graphics · Sandbox · Crafting

Graveyard Keeper
Shared: Pixel Graphics · Sandbox · Crafting

Garry's Mod
Shared: Sandbox · Casual · Building

Starbound
Shared: Sandbox · Pixel Graphics · Crafting

Potion Craft: Alchemist Simulator
Shared: Crafting · 2D · Singleplayer

Factorio
Shared: Sandbox · Crafting · Casual

Vampire Survivors
Shared: Pixel Graphics · 2D · Casual

Melvor Idle
Shared: Casual · 2D · Indie

The Escapists
Shared: Pixel Graphics · 2D · Crafting

Project Highrise
Shared: Building · 2D · Sandbox

Graveyard Keeper 2
Shared: Sandbox · Building · Casual

Planet Centauri
Shared: Sandbox · 2D · Pixel Graphics

Hydroneer
Shared: Sandbox · Mining · Building

Timberman
Shared: Casual · Pixel Graphics · 2D

DAVE THE DIVER
Shared: Casual · Pixel Graphics · Singleplayer

My Time at Portia
Shared: Casual · Crafting · Building

SUMMERHOUSE
Shared: Sandbox · Casual · Building

Cookie Clicker
Shared: Casual · Pixel Graphics · Indie

Necesse
Shared: Pixel Graphics · Sandbox · Crafting

shapez
Shared: Sandbox · Crafting · Building

Tinkerlands
Shared: Sandbox · Pixel Graphics · 2D