Developers frequently release free updates that add missions and mechanics to the base game.
You can download hundreds of community-made missions for free via the or the Official Discord. How to Install (Manual/Discord) : Starship Troopers: Terran Command Free Download...
Download the scenario files (often a .zip) from the community Discord's "scenario-release" channel. Developers frequently release free updates that add missions
Restart the game to see the new missions in your playable list. 💻 System Requirements Expanding Gases (a survival mission)
: A free tool that allows players to create their own maps and missions. Recent updates have added a revamped user interface and improved AI menus. 🛠️ Free Community Scenarios
: Includes three new missions—Chemical Reaction, Expanding Gases (a survival mission), and Lethal Propellant—introducing new "Chemical Trooper" units.