I can't echo this strongly enough - MPC is core in my games.wingsandsword said:As for 3rd party books: The Modern Players Companion by The Game Mechanics & Green Ronin is essential, it feels almost like missing sections from the core book that should have been there all along.
- Grim Tales isn't really a d20 Modern product, but it's a really interesting deconstruction of the d20 Modern rules. If you're interested in expanding d20 Modern to grim adventure in any time period it's a pretty good choice.
Knightfall1972 said:I love monster books, so I'll probably get it. I have the Modern SRD material for the Menace Manual (as well as the rest of the SRD material) but I prefer to have the book.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.