This is a great system. Too bad its OOP. I have the PDFs now because I run the game from a laptop. I can search the GG and the PCs wont know (no more..."hey the GM is looking for something, and that's never good..."). <br><br><b>DISLIKED</b>: That it's OOP.<br><br><b>QUALITY</b>: Excellent<br><br><b>VALUE</b>: Very Satisfied<br>

The GMG for Alternity is an absolute necessity for the game. It contains a wealth of information including rules left out of the PHB. It has a wealth of information on such topics as: planets and their environments, spaceships, other vehicles, alien artifacts, and more.

It also has a lot of good GM advice on how to design and run campaigns as well. Another part of interest is the chapter on FX (magic, psychic powers, super powers, etc), although this topic is given another whole book: Beyond Science, a guide to FX.

This is another must-own book for sci-fi fans. See my Alternity PHB review for a little more on Alternity in general.

Nice wide open system. Easy to modify. Some good concepts (Campaign Ideas) throughout. Recommend getting the Alternity Players Handbook to cover all aspects of Alternity Core rules.