Traveller is a science fiction roleplaying game of the far future. A multitude of universes await players and you will find Traveller is capable of handling almost any kind of science fiction setting, from highly intricate cyberpunk worlds to campaigns spanning entire galaxies where mighty empires clash and suns explode.
Mongoose Traveller Second Edition Public Beta Rulebook. Public beta is pay-to-join. Third Imperium setting material is very brief.
Color Core rules 248 pp pdf
Printer Friendly Core Rules 248pp pdf (B&W version of core rules)
Adventure: 44p PDF of "High And Dry"
Printer Friendly Deckplans booklet: 20pp PDF.
Note on deckplans: color core rules has isomorphic color deckplan views, and the 2d view deckplans are separate. The printer friendly PDF uses instead the 2d view deckplans.