Thank you nick! And glad that you like the concept and good to know the effort that went into polish seems to pay off haha!
I really wanted the meta progression layer as I know not everyone plays strategy games and having upgrades would allow "weaker" players or enable specific playstyles that would be rewarding even with failure. I rushed to add this feature honestly - almost failed to deliver but thankfully I managed to squeeze it in! :)
Thanks for playing!~