malladin
Explorer
Wow, lots of votes for Etherscope, despite it not technically a D20M game (although it is so damn close you might not realise
)
So, I'll leave other people to plug Etherscope and I'll put together two lists, one for Modern games and another for science fiction - I'm treating these lists as a buyer's guide, so it depends what you want to use D20M for.
Modern list:
1. Menace Manual (chock full of encounters for so many different styles of game)
2. Modern Heroes: Martial Avengers (my product, a character stuff book, but more than just classes and feats)
3. Modern Player's Companion (covers more ground than Martial Avengers, but IM-naturally biased-O, without the style
)
4. 22 Talent Trees/Another 22 Talent trees (so much coolness for your character for so little $)
5. Blood and Fists (if you like martial arts, this is the book for you, if you don't, there's plenty of bits to pick off here and there).
Sci-Fi List (I'll take D20 Future as a given for this list)
1. e-future tiles (great for mapping out your star ship, although a bit of a fudge on the list as they're generic, not D20M, but well worth buying if you're planning on running a space campaign).
2. Future soldier's battlefield handbook (again, a little biased given out relationship with steampower)
3. Psychic's hanbook
4. Future tech
5. Sidewinder (because I love Sci-Fi western genre combos).
Ben

So, I'll leave other people to plug Etherscope and I'll put together two lists, one for Modern games and another for science fiction - I'm treating these lists as a buyer's guide, so it depends what you want to use D20M for.
Modern list:
1. Menace Manual (chock full of encounters for so many different styles of game)
2. Modern Heroes: Martial Avengers (my product, a character stuff book, but more than just classes and feats)
3. Modern Player's Companion (covers more ground than Martial Avengers, but IM-naturally biased-O, without the style

4. 22 Talent Trees/Another 22 Talent trees (so much coolness for your character for so little $)
5. Blood and Fists (if you like martial arts, this is the book for you, if you don't, there's plenty of bits to pick off here and there).
Sci-Fi List (I'll take D20 Future as a given for this list)
1. e-future tiles (great for mapping out your star ship, although a bit of a fudge on the list as they're generic, not D20M, but well worth buying if you're planning on running a space campaign).
2. Future soldier's battlefield handbook (again, a little biased given out relationship with steampower)
3. Psychic's hanbook
4. Future tech
5. Sidewinder (because I love Sci-Fi western genre combos).
Ben