What companies produce Traveller material?
At the moment, there are five companies licensed to publish Traveller material. British Isles Traveller Support (BITS), based in the UK, has published a number of supplements containing ideas that may be incorporated into any campaign, and an entire self-contained adventure. Steve Jackson Games (SJG), creator of the GURPS system, has a license to publish Traveller material compatible with that system. They are also the source for BITS supplements in the United States. QuickLink Interactive/RPGRealms is licensed to publish Traveller material compatible with the D20 system from Wizards of the Coast – the same rules that form the core of Third Edition Advanced Dungeons and Dragons. Avenger Enterprises is licensed to publish Traveller material compatible with the D20 system as well, and has entered an exclusive publishing agreement with ComStar Games. ComStar Games is separately licensed to produce Traveller material compatible with the Hero system from DOJ. Finally, Marc Miller, the owner