Games like SandBlocks
Games like SandBlocks include Garry's Mod, PowerWash Simulator, GoreBox, s&box, and Totally Accurate Battle Simulator. We matched them by the tags players give SandBlocks on Steam (Casual, Simulation, Sandbox, Boomer Shooter, and FPS): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Sandbox · Casual · Simulation

PowerWash Simulator
Shared: Casual · Simulation · Sandbox

GoreBox
Shared: Sandbox · FPS · 3D

s&box
Shared: Sandbox · Casual · FPS

Totally Accurate Battle Simulator
Shared: Simulation · Sandbox · Colorful

Goat Simulator
Shared: Simulation · Sandbox · Casual

DrainSim
Shared: Casual · Simulation · Sandbox

Slime Rancher
Shared: Sandbox · Simulation · Casual

SUMMERHOUSE
Shared: Sandbox · Casual · Simulation

Stardew Valley
Shared: Simulation · Pixel Graphics · Sandbox

House Flipper
Shared: Simulation · Casual · Sandbox

PC Building Simulator
Shared: Simulation · Sandbox · 3D

PowerWash Simulator 2
Shared: Casual · Simulation · Sandbox

People Playground
Shared: Sandbox · Simulation · Physics

Slime Rancher 2
Shared: Simulation · Colorful · Casual

Hot Dogs, Horseshoes & Hand Grenades
Shared: Sandbox · Simulation · FPS

SuchArt: Genius Artist Simulator
Shared: Sandbox · FPS · 3D

Ravenfield
Shared: FPS · Sandbox · First-Person

CULTIC
Shared: Boomer Shooter · FPS · First-Person

How to Fish
Shared: First-Person · FPS · Casual

Wobbledogs
Shared: Sandbox · Simulation · Colorful

Goat Simulator 3
Shared: Sandbox · Simulation · Casual

Rising Front
Shared: Sandbox · Simulation · FPS

Internet Cafe Simulator 2
Shared: Simulation · 3D · Sandbox