Really great twist on the roguelite horde survival game, I love that you can build up and pass on weaponry between runs and to the drone. 

It seems maybe a little easy? But then again I've played a dozen of these games. Usually I die because I've zoned out, gotten distracted, or gotten sick of the run and let myself die. Some random 'events' or unique monsters every now and again (or maybe even just a couple monster modifiers?) would go a long way