Digger crawlers were powered by ancient steam-powered nuclear fusion engines. These reactor would fuse atoms together to produce energy .Some reactor cores were powered by nuclear fusion.
Sources
- The Star Wars Sourcebook (as fusion energy)
- Galladinium's Fantastic Technology
- Galaxy Guide 12: Aliens — Enemies and Allies (as atomic fusion)
- Star Wars: Rogue Squadron: The Official Nintendo Player's Guide
- Star Wars: Complete Cross-Sections
- Strongholds of Resistance
