One of my testers managed to run it on linux with wine; sadly building the engine for linux doesn't work on windows for me (scons tries to run commands longer than the windows command line's limit), and I need to do it in order to include my custom C++ puzzle-solving code.
Building it in a VM, or clearing enough space on my PC to dual-boot is somewhere deep down on my to-do list (but once I'm happy with the state of the game, there will definitely be a linux build!).