1.4 years later...
Aggressive responses to 1.e4?

Sicilian dragon was very useful when I was 1000. The kings indian is another. The modern and pirc too. The most aggressive openings are like Najdorf and Taimanov and Kan sicilian and stuff, but that is for 2000s. Has too much theory. I will only use that later.
You're recommending some of the most theory dense openings there are, at the U1800 level theory or no theory doesn't matter. Play everything!
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This is the most trash comment in the thread. Learning openings matters from day one. Learning end games matters from day one. That tactics only crowd are fools, who hit a ceiling never to improve again.
Hello, fellow forum bumper

If you wish an aggressive response to 1e4 with an open board and and a game that respresnts the chess equivalent of a cavalry melee, with a mob dashing about hacking and slashing....then answer 1.e4...with 1...e5! More than any half-open defense, 1.e4 e5 will give you the game you desire.

The best aggressive response is c5, the Sicilian Defence.
This creates the best imbalance and counterattacking chances for black. e5 is the most solid way of equalising for black. Sicilian is an opening that black plays to fight for an advantage.

as a tired of playing the scandinivian but always loving king's gambit player, i'm working on an f5 based "reversed king's gambit" repertoire which should suit my double edged loving style better once I get used to it. I tried studying the rousseau once before, but move orders were driving me nuts so I gave up (while building mind numbing theory for other lines too)
rousseau, calabrese, schliemann jaenish etc. is what I'm trying to work towards. you want PURE aggression, nothing beats gambits, but they allow violent counterplay too. you gotta like really scrapping it up and not be a wishy washy "what if?" bean counting player. if you have the taste for it, it's delicious turning losing positions into won games simply by not caring that you just lost material and going for it until you knock your opponent off balance.
it's not a GM approved style, but who plays GMs?! i never even SEE them!
[quote]Sicilian is an opening that black plays to fight for an advantage.[/quote]
Smith Morra is an opening looking to one up that flubbidy floo
The Dragon is a black variation of the Open Sicilian.
The Open Sicilian is marked by White playing Nf3 & d4.