Editor

In-Game Editor
The TKOM editor allows you to create your very own scenarios. The editor has tools that allow you to spawn items and critical machinery needed by astronauts on scene. You may also add vehicles, dynamic and static objects, triggers, science targets, and events.

When you have finished, you can save the scenario with a title and separate file name, and even publish it to the Steam workshop as a downloadable scenario for other Steam users to play on and rate.