Hi, Sandpixie! This is the same game. This is a demo beta (version 2) - a work in progress, so it's still going through polishing and touch-ups. However, it is indeed the same game! Just think of this as an upgraded version of the last demo (version 1). The story should be easier to follow, the gameplay better explained, and the art updated. Plus, you'll get introduced to the character of X.
However, if you're confused by these changes, feel free to wait for the full version! We're going to keep updating, fixing and hopefully improving the game until then. (But we'll be open to feedback, opinions, and theories all the while!)
If you have any other questions or comments, just let us know. Have a Happy New Year, Sandpixie!