Here is my try it may or may not be a epic fail
gog rocks
you know its true
gog or death for you
Paladins are a pain
kill them all
i say with fire
holy warriors
there all the same
light and goodness my ass
Blow the horn
bang the drums
the lich is coming to town
The enemy is here
they will know fear
once they see me
I do not fear death
for it is death
who should fear me
Stand and fight
So we may show
are foes to fear us undead

For my gog Haiku
I have chosen the classic
Beneath a Steel Sky
A father searches
Disorder in the city
Foster saves the day
Hmmm, it's odd that the middle line is so short but it's 7 syllables

mad guardian plots
a phaser in fantasy
clouds and dark entwine
Actually, this one really covers a whole GOG game pack...

I want some good games
Old games I really enjoy
Will find them on GOG
as the game is the topic, here's another one
My favourite game
Heroes of Might and Magic
All time masterpiece

I need good old games
dont have any more money to buy
wont you please gimme one?

The old king has died.
His two sons fight for the throne.
Who will be your king?
EDIT: a new one
People come to GOG.
We don't have much trolls in here.
Great community.

Oh my good old GOG,
Where have you been all my life?
To play games of old.

Ceemdee is great
he sent me Advent Rising
Viva ceemdee.
I'm not trying to sneakily get another one, I just wanted to thank you ceemdee, I got Advent Rising this morning! (I am reading ceemdee as 3 syllables)

Shoot and shoot some more
You would think it would get repetitive
But shooting doesn't get old

Warm up your engine
Prepare for the ultimate
Descent into hell

Winners are random
I am kinda intrigued
Is luck on my side?
specific game?
I'm a crusader
Vampire bites oh no!
Now I'm a night child

Ten dollars, or six
Pounds, but it won't be broken
On delivery.

cheap DRM free
excellent community
a new game each week

I don't need more games
my wife thinks I have too much
but I have to try!
EDIT: I missed the "gog" subject, but I had to fix up the middle syllable count.