This is a whole lot more than an 'adventure' - as well as a complete campaign, there's a wealth of information about asteroid belts, those hazardous and chaotic assemblies of loose rocks that are a feature of many star systems. There are notes on generating Belter characters, on mining operations in space, the ships and equipment you need and more.
First up, Asteroid Belts covers their astronomical and astrophysical nature - and it's a pretty accurate account. In the far future, planet-dwellers regard them as the dumping ground of their solar system whilst others regard them as treasure-troves, ripe for mining for resources. Oh, and despite all the stories, they are nowhere the hazard to astrogation that most people think, in fact it can take careful and precise navigation to intersect with one you actually want to visit! This section goes on to discuss the various types of asteroids, and what resources they have to offer those intrepid enough to attempt to mine them.
This leads naturally into prospecting operations, beginning with the rules for surveying asteroids and determining what they have to offer. Once a prospector has decided an asteroid is worth his attention, he needs to stake a claim to it before mining can commence. This is followed by details of mining operations, both in terms of what goes on and in terms of game mechanics. There's a wealth of detail here, easily enough to run asteroid mining operations in their entirety if that is what you want to do. There's even an expansion on the core rulebook rules for zero-G, given that most asteroid mining operations are coducted in micro-gravity conditions.
Next comes a section all about Belter characters, those who were born or who work in asteroid belts and space habitats. Those born there have certain starting characteristics and abilities - for example they tend to be less strong but with greater dexterity than the planet-born, and their vacc suit and zero-G skills are well-developed from an early age. Those who work there soon learn such skills if they want to survive, and there is a full Belter career path given for those who would like to have this in their background. To round this out, there is considerable detail on the 'belter lifestyle' to help you understand what your character has been doing and so incorporate typical Belter attitudes and habits into your role-playing.
This is followed by a section on expeditions, equipment and ships which covers both the organising of trips into an asteriod belt (for mining, for research or whatever purpose) and the gear necessary to undertake them. There are even full details and plans for both a solo prospector's ship and a full-blown mining platform.
The rest of the book contains a detailed account of an asteriod belt, the Shaeffer Belt, and a campaign and individual adventure ideas based there. You can use the Shaeffer Belt as is, or mine it for ideas to create your own wherever in the universe you want to locate it. Even if you run your game in the official Traveller universe (OTU), you can slot it in to an undeveloped hex - several possible subsectors are suggested - as it is supposed to be a bit of a backwater, little known outside of the few who call it home (or at least, the place where they work). It's to be found in the Sonares system - which is fully described - a place where the indigenous inhabitants have not yet discovered Jump, and so have been limited to travel around their own system. Most of the asteroid belt is open to independent prospectors, plenty of scope for intrepid adventurers. Plenty of background and history for the system is provided, complete with a colonised world, a recent massive conflict, space habitats and a charismatic military dictator, so it is not just somewhere to put the asteroid belt but an interesting place in its own right with things to get involved in other than asteroid mining.
Characters coming from the Sonares system are catered for, with notes informing the character generation process. The various space habitats - both space station and hollowed-out asteroid - are well-described, enabling them to serve as someone's 'homeworld' or as a place to visit.
As if this wealth of information does not provide enough material to empower your game, this is followed by several adventures, beginning with The Factory, the first scenario in the Beltstrike Campaign. It involves the Lothrain Free Company, a prospecting and mining outfit, that the characters can work for - there are even some fully-developed NPCs which can be used as characters if you want to jump straight in. They are asked to check out a mining platform that the company is intending to purchase... this is followed by several short scenarios to 'fill in' time before the purchase is made and the characters get involved in refitting the mining platform and getting it operational, and then onwards to making money... and perhaps getting involved in an all-out war!
What is interesting about this campaign is that it presents the Traveller universe (be it the OTU or one of your own devising) as a place where ordinary people live and work... yes, adventures happen, but adventure is not the reason for its existance as an alternate reality. We, as players, know that of course it's only there for us to have games in, but for our characters it is their reality... and this setting and campaign really bring that to life. Not that these scenarios are boring, by any means. Adventure and excitement - and gun play - are to be had here, but within a setting that does not stretch imagination too far (once you've accepted a universe in which interstellar space travel is commonplace, at any rate). Here are adventures in which people are important, their plots and ambitions, their lives and careers... technology is but the backdrop for the human drama.
If this kind of 'realism' appeals, this campaign could make a valuable contribution to your gaming pleasure.