Ruin Land

There's only One Gem to find as of now.
Use WASD to move and Spacebar to read the text. Stuck on this island for months now… Trying to figure a way out of here… Your beloved ones are waiting… Time is ticking…
What lies beyond these bounds of this island? What is about this island which was so precious? Why were we here and am I the only one left? Is there anyone to help…