Aww man, that's a shame on Linux audio. Have to see if I can patch that. There's definitely full music and sound effects in both the web and Windows versions.
And thanks for the detailed review! All helpful stuff, and agree on everything you said. Progression is a bit hit and miss, and all of your suggestions are things I just ran out of time for, including elemental mechs! That was something I was really excited for, but ended up worried regarding the time to do AI with that versus more basic units.
Glad you enjoyed it despite the issues! Thanks for playing!