A lot of fun! I'm not usually a fan of survivors-likes but there were several things about this that I really liked, the one or two enemies at time made it feel exciting without be overwhelming and the upgrades where you can build walls is really cool and makes for some interesting strategies. I would even wonder about just having the build always on, maybe give a limit to the number of blocks out at one time? Regardless, it certainly add to the strategy and possibilities during the game! Good job! Keep at it!