Games like Buildmark
Games like Buildmark include Garry's Mod, Fireworks Mania - An Explosive Simulator, PC Building Simulator, Scrap Mechanic, and The Forest. We matched them by the tags players give Buildmark on Steam (Sandbox, Building, 3D, First-Person, and Singleplayer): closest matches first, and among equally close ones the better-known games.
Garry's Mod
Shared: Sandbox · Building · First-Person
Fireworks Mania - An Explosive Simulator
Shared: Sandbox · Building · Singleplayer
PC Building Simulator
Shared: Building · Sandbox · First-Person
Scrap Mechanic
Shared: Sandbox · Building · First-Person
The Forest
Shared: Building · First-Person · Sandbox
Gold Mining Simulator
Shared: Singleplayer · Sandbox · Building
Slime Rancher
Shared: First-Person · Singleplayer · Exploration
Internet Cafe Simulator 2
Shared: 3D · Sandbox · First-Person
House Flipper
Shared: Building · Sandbox · Singleplayer
Terraria
Shared: Sandbox · Building · Exploration
Out of Ore
Shared: Sandbox · 3D · Exploration
Kerbal Space Program 2
Shared: Sandbox · Building · Exploration
Teardown
Shared: Sandbox · Singleplayer · First-Person
Townscaper
Shared: Building · Sandbox · Experimental
Space Engineers
Shared: Sandbox · Building · Singleplayer
The Long Dark
Shared: First-Person · Singleplayer · Exploration
My Summer Car
Shared: Building · First-Person · Sandbox
The Infected
Shared: Singleplayer · Building · Early Access
Planet Coaster 2
Shared: Sandbox · Building · 3D
OxyRail
Shared: Sandbox · Building · Singleplayer
Stranded Deep
Shared: First-Person · Building · Exploration
Supermarket Simulator
Shared: Singleplayer · First-Person · Building
Mon Bazou
Shared: Sandbox · Building · Exploration
s&box
Shared: Sandbox · Building · 3D