It's free, it's good, and it's modular so you can pick and choose the elements you need at the moment. The tables are Nature of Construction, Control (who's in control), Outpost Location (location type), Population, Primary Purpose, and Current Problem. Each table uses a separate die type (d4, d6, d8, d10, d12, and d20). Roll the dice and see what you get. Skip the tables for which you already have an answer.

The prouct description says it's for Stars Without Number, but there's nothing system-specific in the tables. You could use this for any game of starfaring sci-fi. Actually, only one table assumes interstellar travel, so if you have a sword & planet space opera or a first contact setting for humanity, you could still use the other tables.

The only stated dependency between tables is that your roll on the d10 table (Outpost Location) can alter your roll on the d6 table (Nature of Construction). It's an easy adjustment.

Most combinations work fine. Some combinations might be hard to reconcile, such as an agricultural outpost in a gas cloud. Maybe you'll think of a way to use that anyway, or you could take the next item down the list.

These tables don't roll up the denizens for you, human or otherwise.

Basically, exactly what it says on the lack of a cover. Take your handful of 6 or 7 standard RPG dice (d4,6,8,10,10 (marked as tens, if you don't like rerolls),12 & 20), roll them, pick up and re-roll that d4 that you dropped under the table, refer to the single page and in less than sixty seconds you've noted down:

• alien controlled
• orbital ring
• in an exotic location (a comet diverted into interstellar space),
• acting as a communications relay
• with a staff of tens,
• that are having repair issues.

The d10-as-tens is used if the standard d10 rolls "10: exotic" - so you don't need to roll again and burn precious kilocalories. Above, the second roll was "Comet". There's a rule to divide by x if your outpost type doesn't match the location - e.g. subsurface tunnels in a gas cloud - although maybe that's even more interesting... What are you up to this time, Q?

From this basis, just fill in from your imagination and campaign background, which should only take a few minutes.

• I dredged up "in interstellar space" for a plausible but exotic comet situation.
• I decided to roll a d8 (for tens) and d10 (for units) to get sixty for the actual population.
• Why put a base around a comet? Presumably easy access to water and other ices, and maybe small amounts of minerals. So the repair issue they have is clarified to become they can no longer repair the system that extracts water, carbon dioxide, ammonia and methane ices for life support and organic feedstock.
• Why a ring? So there's no dead spots for communications caused by the comet, or to provide a compound antenna kilometres wide. And maybe - if it's miltary - each ring component is smaller and harder to detect than a single large base.

So now, depending on my campaign I have:

• an enemy installation, (perhaps a listening post) that needs assistance - do the PCs assist, perhaps on condition of surrender, or try and sieze or destroy it?
• Or maybe the Kr'ZZit Communications Net supports this whole galactic arm, and rendering assistance - well, lets just say when that message just needs to go through two adventures down the track - it will. Especially if it needs to go through "discreetly".
• Or perhaps this is a first contact civilization setting up a hypercomms network to support their first interstellar colonies, that your PCs stumbled onto just past the edge of known space. Will they start a war with these strange looking "Terrans", or introduce them to the benefits of galactic society?
• or many more, from just "one roll".

Location and encounter generation tables aren't anything new, but this is one-page to slide into your GM folder or onto your tablet or laptop, as a a pretty amazing tool for that unexpected side-quest or to fill out a session that ended sooner than expected, or that you had no time to prep for. I think it deserves 5 stars - that it's free means what are you waiting for? The galactic black hole to evaporate? Stop reading this waffle, and go get it now.