Great game so far, I really enjoy playing! However there is a bug when trying to interact with the barrels in the swamp. 
Viewing post in The Lightbringer's Legacy - Demo comments
Hey, thank you for reporting this bug. I was able to reproduce it and it's a really stupid one. Because this bug is preventing you from finishing the demo version, I decided to upload a folder called "Bugfixes" for you to solve it without downloading a new game version (because I changed so much and was stupid not to save a finished demo version). You can download it on the games main page where you also downloaded the game.
Inside you will find a README.txt with the instructions how to fix the bug.
Go into your game folder and then navigate to "www" -> "data". Copy the files "Map067.json" and "Map069.json" from the Bugfix folder into this folder and overwrite the existing files.
When you relaunch your game you should be able to interact with the barrel in the swamp. Hope that helps!
Kind regards,
Alo