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

People Playground
Shared: Sandbox · 2D · Simulation

Terraria
Shared: Sandbox · 2D · Pixel Graphics

Stardew Valley
Shared: Pixel Graphics · Simulation · Sandbox

Garry's Mod
Shared: Sandbox · Building · Physics

Graveyard Keeper
Shared: Simulation · Pixel Graphics · Sandbox

WorldBox - God Simulator
Shared: Sandbox · Simulation · Pixel Graphics

Besiege
Shared: Simulation · Sandbox · Destruction

Kerbal Space Program
Shared: Simulation · Sandbox · Building

Space Engineers
Shared: Sandbox · Simulation · Building

Noita
Shared: Pixel Graphics · Sandbox · Physics

BeamNG.drive
Shared: Simulation · Sandbox · Destruction

Teardown
Shared: Sandbox · Destruction · Physics

Brick Rigs
Shared: Sandbox · Building · Destruction

Poly Bridge
Shared: Simulation · Building · Sandbox

Totally Accurate Battle Simulator
Shared: Simulation · Sandbox · Singleplayer

Sand:box
Shared: Simulation · Sandbox · 2D

Prison Architect
Shared: Simulation · Sandbox · Building

Goat Simulator
Shared: Simulation · Sandbox · Destruction

Papers, Please
Shared: Simulation · Pixel Graphics · Indie

Oxygen Not Included
Shared: Building · 2D · Sandbox

ACTION SANDBOX
Shared: Simulation · Sandbox · 2D

Project Highrise
Shared: Simulation · Building · 2D

鬼谷八荒 Tale of Immortal
Shared: Simulation · Sandbox · Singleplayer

Cities: Skylines
Shared: Simulation · Building · Sandbox