Games like Aircrafter
Games like Aircrafter include Garry's Mod, Aviassembly, Kerbal Space Program, Placid Plastic Duck Simulator, and Slime Rancher 2. We matched them by the tags players give Aircrafter on Steam (Building, Relaxing, Physics, Science, and Flight): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Building · Physics · Casual

Aviassembly
Shared: Building · Physics · Flight

Kerbal Space Program
Shared: Physics · Building · Science

Placid Plastic Duck Simulator
Shared: Relaxing · Physics · 3D

Slime Rancher 2
Shared: Relaxing · Colorful · Casual

Planet Coaster
Shared: Building · Relaxing · Simulation

Hozy
Shared: Relaxing · Physics · Casual

House Flipper
Shared: Building · Relaxing · Simulation

Townscaper
Shared: Relaxing · Building · Casual

PowerWash Simulator
Shared: Relaxing · Casual · 3D

DrainSim
Shared: Relaxing · Physics · Casual

Flyout
Shared: Building · Physics · Flight

Universe Sandbox
Shared: Physics · Relaxing · Simulation

Poly Bridge
Shared: Building · Physics · Simulation

Superflight
Shared: Relaxing · Flight · Casual

Tiny Glade
Shared: Building · Relaxing · Casual

House Flipper 2
Shared: Relaxing · Building · Casual

The Sims™ 4
Shared: Building · Relaxing · Simulation

My Dream Setup
Shared: Building · Relaxing · Casual

Passpartout: The Starving Artist
Shared: Relaxing · Casual · Simulation

SpaceEngine
Shared: Casual · 3D · Science

Paralives
Shared: Building · Simulation · Relaxing

PC Building Simulator
Shared: Building · Simulation · 3D

Fun with Ragdolls: The Game
Shared: Physics · Building · Simulation

