Games like Dimensions: Dreadnought Architect
Games like Dimensions: Dreadnought Architect include Space Engineers, Kerbal Space Program, Besiege, Garry's Mod, and Avorion. We matched them by the tags players give Dimensions: Dreadnought Architect on Steam (Building, Spaceships, Roguelite, Sandbox, and Physics): closest matches first, and among equally close ones the better-known games.

Space Engineers
Shared: Building · Sandbox · Physics

Kerbal Space Program
Shared: Sandbox · Building · Physics

Besiege
Shared: Sandbox · Building · Physics

Garry's Mod
Shared: Sandbox · Building · Physics

Avorion
Shared: Building · Sandbox · Flight

Kerbal Space Program 2
Shared: Building · Sandbox · Physics

Brick Rigs
Shared: Building · Sandbox · Physics

Aviassembly
Shared: Building · Physics · Sandbox

Stormworks: Build and Rescue
Shared: Building · Sandbox · Physics

Totally Accurate Battle Simulator
Shared: Sandbox · Physics · Simulation

Spaceflight Simulator
Shared: Sandbox · Space · Spaceships

Scrap Mechanic
Shared: Building · Sandbox · Physics

Empyrion - Galactic Survival
Shared: Building · Space · Sandbox

Teardown
Shared: Sandbox · Physics · Indie

SimplePlanes
Shared: Building · Sandbox · Physics

Hardspace: Shipbreaker
Shared: Physics · Space · Sandbox

Dyson Sphere Program
Shared: Building · Space · Sandbox

People Playground
Shared: Sandbox · Physics · Building

Cosmoteer: Starship Architect & Commander
Shared: Building · Space · Indie

Medieval Engineers
Shared: Building · Sandbox · Physics

Flyout
Shared: Building · Sandbox · Physics

Poly Bridge
Shared: Building · Physics · Sandbox

Space Engineers 2
Shared: Building · Sandbox · Physics

Trailmakers
Shared: Space · Building · Sandbox