Thank you, I'm glad you liked the graphics!
I do intend to eventually port it to Linux, but I want to complete the Windows version first. Making 2 ports simultaneously would delay development, since I'm working on this project alone.
However, while there is still no official Linux port, I believe you can run this version of my game on your OS with the Wine emulator.
I haven't tested it myself, so I can't confirm its effectiveness, but from what I've seen, it's very good at emulating games with simpler visuals, like this one.
I hope this helps, thanks for your comment!