Official PDFs from Mongoose Publishing are fully bookmarked and indexed, making them easy to use at the table. Scanned "free" versions are usually clunky and hard to search.

Mongoose is a dedicated RPG publisher. Purchasing their books ensures they can continue to release new adventures and sourcebooks for the Third Imperium. How to Get the Mongoose Traveller Companion Legally

Keep an eye on this site. They frequently run "Traveller" bundles where you can get $100+ worth of PDFs—including the Companion —for a fraction of the cost.

Many sites offering free RPG PDFs bundle downloads with malware, trackers, or browser hijackers.

This is the primary hub for Traveller digital content. The PDF version is significantly cheaper than the physical book and includes all official updates.

Adds realism with specific wound effects and long-term medical recovery rules.

The Traveller Companion for the 2nd Edition (MgT2) is a massive expansion designed to plug the gaps in the core rules. While the Core Rulebook gives you the tools to play, the Companion gives you the tools to customize the universe to your specific tastes. Key Features of the Companion: