Prince of Persia

This achievement is unlocked by finding the sword on the first level. The sword is the first item that you will find and the achievement will unlock as you pick up the sword. For more detailed instructions on the location of the sword open the below spoiler.

***SPOILER***
-You start the game at the very bottom of the dungeon, with the gate closing
behind you. Lower yourself to the bottom path, then run over to the right
against the wall. The floor should have fallen out in the middle. Lower
yourself down to the next room, hanging from the ledge, as the fall will take
away some energy if you fall too far.

-When you land, run left and climb up to enter the next room.

-Run to the left and jump over the gap. Now step on the pressure plate to open
the gate and go left into the room.

-In this room, climb down to the level below you and trip the pressure plate on
the right. Now jump over the gap to your left and climb up to the next room.

-Run left without stopping (the floor drops out) and enter the next room.

-Step on the pressure plate upon entering the room. Now run and jump across
the gap WITHOUT landing on the pressure plate on the other side (it will close
the gate you just opened). Climb up the wall and into the next room.

-Jump across the gap and continue to run left into the next room.

-Climb down to the bottom and grab the SWORD.
***END SPOILER***

This achievement will be unlocked by playing through the story.