I found this book on Amazon a few weeks ago and ordered it for about $10. It's the second edition of a small OSR game similar to White Box. It has some fun options, like four or more variants for each of the regular classes. These variants mostly swap out one class feature for the feature of another class or some other ability. The monster selection is good and done in an interesting fashion. It's organized by threat level and has some general headings with a basic stat block with a random table to choose a specific kinds that alter that. So, as an example, one of the Threat Level 0 options is Skittering Vermin and choices are things like thick chitinous plating or many tiny talons. I look forward to trying it and probably will as a solo game first.
