Play a game to win a game (The Vanishing of Ethan Carter) [SOLUTION]

THE GAME:
The Vanishing of Ethan Carter (lvl 1+; closed)

THE PUZZLE:
s WAS
s WS
o AAS
J DDS
J WWDS
J AS
I AAS
L S
z WS
z WAAS
I AAS
J WWWS
L WWDS
o AAS
J WAS
z DS
I AAS
I DS
o S
J AS
J WWAAS
I WAS

THE HINTS:

1. Once you recognize it for what it is, it's probably important to make clear that the first step is the one on the top, not the one on the bottom; also bear in mind that the defining (leftmost) character of each step will always appear in the middle (and in the same position as you see it written).
2. The puzzle is divided into two parts: the characters on the left and the characters on the right. Try to type the characters on the right, line by line. What game do you play?
3. The width is 5, the height is 7+4+7+7+4 (bottom to top). The direction is clockwise and there is one number in the code.
4. Alexey Leonidovich Pajitnov.

THE SOLUTION:
http://i.imgur.com/Rplw5W9.png?1