The Modern Benoni, KID or the Triangle (1.d4 d5 2.c4 e6 3.Nc3/3.Nf3 c6). Also, the most aggressive opening is equivalent to the most theoretical option, so if you see an opening with 25 moves of theory leading to a forced draw, then you should play that.
1...Nf6
1...Nf6 is not an opening. In fact it can perfectly well transpose to the QGD or even Slav.
1...Nf6
1...Nf6 is not an opening. In fact it can perfectly well transpose to the QGD or even Slav.
What do you mean by "not an opening"?
The question was asking for a response to 1.d4, not an opening.
It can lead to many openings.
The OP asked for a 'way to play'. I don't think 1...Nf6 is helpful, as it's not a way to play but rather a single move.
@Pawnstormpossie something like this would have made more sense: "The Indian Openings after 1..Nf6 allow you to play in a hypermodern style, which can be suited for aggressive play".
Aggression against 1.d4 is usually of a different characteristic than against 1.e4. The Benoni, King's Indian, and Dutch are aggressive, but you will usually not get explosive tactics and a messy position right out of the gate; many of the pawns remain on the board, and Black gets his turn to attack in the middlegame.
If you are looking for the most "e4-esque" (open) play against 1.d4, perhaps the Albin Countergambit, or the Budapest Gambit?
Dutch
Don't neccessarily need it to be open such as an 1. e4 game, but I want something with tactics and attacking where I can get a win as black. Have played King's Indian and dislike it, as well as Benoni. Preferabbly this would be something that I can play against both d4 c4 and d4 Nf3 rather than just d4 c4 (such as the Budapest). Would something such as the Polish defense, English defense or Leningrad be a good choice? Just looking for recommendations
Don't neccessarily need it to be open such as an 1. e4 game, but I want something with tactics and attacking where I can get a win as black. Have played King's Indian and dislike it, as well as Benoni. Preferabbly this would be something that I can play against both d4 c4 and d4 Nf3 rather than just d4 c4 (such as the Budapest). Would something such as the Polish defense, English defense or Leningrad be a good choice? Just looking for recommendations
If you don't like the KID I doubt you'll like the Leningrad, which you could think of as being an "accelerated KID". The Polish Defense is just inferior and won't help you win with black, while the English Defense is unsound, and also doesn't work against 1.d4 e6 2.Nf3, since 2...b6 3.e4! is the Owen's Defense, which is even more difficult.
It sounds to me like you're looking for something dynamic that allows you to play for more than equality. I mentioned the Triangle earlier, which arises after 1.d4 d5 2.c4 e6 3.Nf3 c6. After 4.Nc3 you can transpose to the Semi-Slav with 4...Nf6 - you have very complex chess, and the point of this move order is that you avoid the symmetrical Exchange Slav as well as the quiet Slow Slav. After 4.e3 f5 you have a Stonewall position in which black has good chances to play for a win.
You also need to consider your responses to 1.c4 and 1.Nf3. If you like aggressive play you should play the Symmetrical English against 1.c4 and 1.Nf3 d5 2.c4 d4 against the Reti (if you play the Sicilian you can play 1...c5 against 1.Nf3 as well).
Hate to break it to you but there is no one size fits all.
The Leningrad Dutch is probably the opening that will most frequently get you what you are looking for, but do not play it blindly. You need alternative answers for:
A) Staunton Gambit (2.e4)
B) Poison Spike Gambit (2.g4)
C) Dangerfield Attack (2.Bf4 Nf6 3.e3, where 3...g6 is an error here - 3...d6 might be possible but highly risky and if no 4.Nf3, then 4...g6 is still an error due to 5.h4! - 3...e6 is best here)
D) 2.Nc3 - lines with ...d5 work best here. There is a line called the "Leningrad Stonewall", but you still don't get the normal position with pawn on d6.
Like someone else said, one side does not decide the opening. Both do! Sometimes you will have to defend. You do not need an aggressive answer to everything and many times playing aggressively with Black is a huge error, especially against gambits or lines where White's pawn structure is compromised. In these cases, defending can actually win. Defend White's attack to the point that his pawn structure is a train wreck in an endgame.
If your reasoning behind aggression is to take the lazy route and avoid studying endgames thoroughly, you will always suck and continue to fail. KNOW YOUR ENDGAMES - no matter what opening you play!
The KID is fine. White will never lead a quiet life even he is material up.
KID but you have to work in order to know how to develop your pieces.
None seems to have mentioned 1.d4 c5
Of course, the Benoni has been mentioned and this can lead to the Old Benoni or Benoni Hromadka system or go elsewhere! I have just started playing 1...c5 vs 1.d4 as it is a direct aggressive move against (the...yawnnn...the slow...) 1.d4 opening. This seems to surprise many d4 players and it so far has given me relatively easy play and I have had good results so far! Still I play other openings against 1.d4 and as I am happy with the French I often play 1.d4 e6 (transposes to French after 1.d4 e6 2.e4 d5) and if 1.d4 e6 2.c4 I play 2...b6 and the English/Dutch defence (with f5 in there)! I also play all the usual stuff KID, Nimzo, BogoIndian,QID even Queens Gambit. As my handle suggests though, as White I prefer 1.e4, but I do play 1.d4 as White also. It is important to play openings with both colours in my opinion. I hope you find something suitable but do try 1.d4 c5... ;-)
Be ready for the mighty Morra! 2.e4
For a long time I had a great life with the Slavic defense.
But the series of defeats in the low-popular openings, like Colle, London and White Stoneval - forced me to look for something more radical.
Now I am preparing 1...c5 for my opponents.
I do not claim that it is a reliable system.
But the players of U2000 are often confused at the board, because they have to think for themselves, rather than crawling ten standart moves. So, I think this is what I was looking for!
Just a small example of how to confuse an experienced d4-wolf.
Highly-respected @BL4D3RUNN3R said the Smith-Morra gambit, but if you made the d4-player (often a Londoner or Colle fan) play the Sicilian gambit, Damn !, you are already on the right way, I think.
I played 1d4 as a club player for many years, and it was the Benoni and Kings Indian that gave me fits, especially the KID. It seemed like black always got a big counter attack no matter how I tried to pin him down.