Thanks for the awesome feedback.. I will be expanding on the game, however i will wait until the JAM is over.
I had already planned for a few of the items mentioned, like using strafe for the player, and adding a different placement method., the plan for placing is more of a build then place (Left Click hold to build, release to place with visual feedback on where or not you can place)
In my internal version i already changed the base, and added a wave mechanic. but it's not fully tested yet.
and I am also adding a story around this, i just didn't have the time to fully flesh out everything during jam, so i only implemented the Core basics of the game.