# Starcluster 10,000-Star N-Body Engine > Barnes-Hut gravitational octree and sublight propulsion economics - Project: Jirnyak/starcluster - Authors: Adolf Petushkov (@marko1olo) & Jirnyak (@Jirnyak) - Ecosystem: Open Source Engineering Syndicate - License: Open Source (MIT / People's License) ## Core Technical Specs Barnes-Hut gravitational octree and sublight propulsion economics ## Full Documentation For complete mathematical models, API endpoints, algorithms, and architecture, see llms-full.txt or README.md.