Lizzie (Lazarus Pit Puzzle)

So I am making a game like the Lazarus Pit Puzzle right now. Today, I got it to be fully playable as Version 1.0. Many changes coming soon, but here it is!
App-Image (which only works on Windows (and requires no JRE))
JAR File (Cross Platform with a JRE)
Source Code (Cross Platform with a JRE after compiling it)

If you try to run it, you will get a popup saying "Microsoft Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk". Clicking "More Info" will allow you to run it. Why does this happen? Not because it is actually unsafe/windows defender scanned it, but because the executable is unsigned (you gotta pay money for that!). And what do you expect downloading from a sketchy link from a person on the internet?

Edit: Oops! It references a file that directly exists on my computer Hard Drive! Haha it broke more! InputStreams are hard!
Edit: Fixed, thank Duke for HttpURLConnection! It now requires an internet connection