An excellent "little" (not that little at 78 pages) distillation of the RPG-worthy setting material extracted from the imaginary worlds of Lord Dunsay for those who find his works a little too heavy-going to read in such detail. Layout and editing is the only reason for 4 stars instead of 5, e.g. the selected stories at the back of the book are a little dense at this size - perhaps a 5.5 x 8.5 inch digest size would have been more appropriate. But when the cost is pay-what-you-want it's hard to quibble about such things, and http://www.drivethrurpg.com/browse/pub/4283/Trollish-Delver-Games continue to put out a lot of good material at that price.

Arriving quietly and without fanfare, the Cepheus Engine may prove to be a great facilitator for the expansion of SF gaming in the future. Although billed as a system reference document - which it is - this book is fully usable as a role-playing game. Paired with a setting (such as the Cepheus Engine-compatible Orbital 2100 by Zozer Games) there are years of gaming here. The only reason it escaped a 5-star rating is that, in my opinion, it sells itself short. A little more formatting would have taken Cepheus Engine past its Traveller SRD origins and made it more table-friendly. There is no interior art, which is a plus in a generic book covering essentially the entire gamut of possibilities of SF gaming - any illustrations of environments, spacecraft, or even equipment would inevitably stunt the imagination of players and referees.