this is really great on a demo scale! i like the art and love this type of game. if there was some upgrades or more advanced buildings i could see myself putting quite a lot of hours into this. the only disappointing thing is that after putting down a few belts you've kinda reached the end of the game and are just in sandbox mode to make the numbers go up faster. i'd be very happy to see some other fantasy metal mixing like orichalcum or mithril and combining things to make the process a bit deeper.