Played this game back when it was .0.5.0 Must say that I am overjoyed with the progress you've made, but for some reason I can't interact with anything after downloading latest version.
If you have not played for a while I think you're in for a real treat.
You should be able to interact with characters and items by walking up to them and facing them directly. If they are in range then you will see an icon appear above their head.
Then just press E and you're interacting. Hooray!
If that does not work be sure to check that your antivirus has not annoyingly removed some game files.
If it has then disable your antivirus , unzip the files again then launch.
If you still have trouble email me some screenshots at firstname.lastname@example.org and I'll get you going.
Good luck, hunter.