Free bump, as the GAs are lacking a couple of entries.

BUMP

Also for programers, here's a little something to help you decipher Affine Cipher.

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>

 #define MAXSIZE 1024

char encryption(char Plaintext[MAXSIZE], int A, int B, int length)
{
    char Ciphered[MAXSIZE];
    int i;
    int y;
    int index;
    for(i=0;i<strlen(Plaintext);i++)
    {
        if(Plaintext[i]==' ')
        {
            Ciphered[i]=' ';
        }
        else
        {
            index=(int)Plaintext[i] - 'a';
            y=(A*index+B) % 26;
            Ciphered[i]=(char)y+97;
        }
    }
    printf("%s",Ciphered);
 }

 int main()
 {
    int length;
    int i;
    int A, B;
    char Plaintext[MAXSIZE];
    printf("write your stuff here: ");
    fgets(Plaintext,100,stdin);
    for(i=0;i<strlen(Plaintext);i++)
    {
        if(isupper(Plaintext[i]))
        {
            Plaintext[i]=tolower(Plaintext[i]);
        }
    }
    printf("give A and B: ");
    scanf("%d%d",&A,&B);
    encryption(Plaintext,A,B,length);
 }

I just managed to write a program in java and i just managed to read the description of your thread, but I still dont know where the giveaway link.
Hmm, sadly.....
I really dont understand what I miss. Hahahaha.

Bump for puzzle and nice gifts :) but going to avoid due to the pain you put my brain through.

Bump for easy

Hint: The cipher is a hoax.

The giveaways are ending after 4 hours and half. If you have any question regarding the puzzle or/and how to solve, you might ask starting from now.

BUMP

Bump for solved

Finally solved.

Solved with two minutes to spare. Whew!

Giveaways ended. Congratulations to whomever won(Keys sent)! I will edit the discussion shortly so you know how to solve this.

The hints made it a lot easier (and kinda spoiled it a little, in my opinion).
Minus the fact that you have to reach mahv's thread, the rest of the puzzle is very easy.

http://www.steamgifts.com/giveaway/L5tEA/dead-state-reanimated

Enjoy guys. Last key I have :/

Solution:

Upon entering the discussion, your very first step is to decode the given cipher using the information I've given(Obvious hein?). However, deciphering the text yield:

Tip: You could use an online decoder to do it.

If you are searching for the giveaway. It is not here. Go search elsewhere, but be consistent not to wander off. Fun fact: I was trying to make sure that this description has all alphabets, but I got lazy. As usual, I got lazy and I said let us Make this harder.

The message implies that the giveaway isn't hidden in the cipher. But rather somewhere else. But where would I hide it rather than my own discussion thread? It was hidden IN the cipher. If you could notice, there are bold letters in the original cipher that will yield: "tlFiL" once gathered. It looks like you could use it as a GA URL, but I wouldn't make it that easy. It was rather a discussion URL: ma.v's discussion thread, once you're in the discussion thread, you'll find that ma.v said that I said it's hidden here and you're in the right path. Of course your reaction, as unprofesionnal puzzle-solvers; is how am I supposed to know I should use as a discussion URL? The answer is very simple. I've also hid two messages in my very first reply to the discussion, a reply which says "This is a hint".

First message: sg.has.more.than.giveaways.discussions.for.example
Second message: (If.you.find.it.hard.to.find.the.correct.place.since.there.are.a.lot.I.attached.a.picture.in.it)

The first message is a direct hint that the code "tlFiL must be used as a discussion URL. The second message is more direct that I hid something in one of my replies in ma.v's discussion thead. But I made too many god damn replies that day. That's why it says I also attached a picture with it. The image is:

Which is taken from the movie "Inception" that means you gotta simply dig deeper, and by deeper I mean check the source of the page and particualry my reply. Once done, you'll find this code as the title of the .gif. "x4a2JWgL".

You simply use the code in ITH. That yiels THIS

There are two questions in the ITH puzzle. Both answers are simply "No answer." , obtained by following the pattern "No title.", "No description." and "No question.".

Once you answer correctly, you'll get a code that leads to the first wagon of the train.

View attached image.