Thanks for all the feedback, it's all very constructive and is going to be very helpful moving forward (I'm Sean by the way

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I'm not going to respond in detail to all the feedback, for the most part I agree with it, but I thought I'd just clarify what our vision is moving forward which should answer a lot of the questions. Also bare in mind that the version you are playing is the raw engine without the 'game' part.
Firstly you might want to
read these dev logs which explain some design choices.
So everything I explain now will be explained somehow in game, we are figuring out how at the moment...
The basic premise is that you were part of some kind of expedition force invading an unknown part of the galaxy. You warp with your fleet, but you come out of warp alone with your warp navigation systems fried. This means the only way to navigate is to enter random coordinates into the flight computer. At the moment the number you enter is just a seed for a random level generator, we will be making some kind of stargate-type interface for warping. Your long term goal to find out what happened to your fleet and find a way home. We will be dropping in scripted events every so many warps, regardless of the coordinates.
Each system you jump to has a boss ship which is spawning all the other ships. It will be impossible to kill until you upgrade your ship...
The upgrade drops represent the 4 alchemy elements. Each has a different effect on different systems, the columns in the UI in the bottom right represent engines, shields, and guns.... except that the black gems are just extra 'hull' wherever you put it, think of it like you are making your hull thicker so less space for other stuff. The red and white gems increase some value associated with the system, e.g. red - damage per bullet or white - bullet velocity. The yellow gem changes the system in some way, e.g. the triple shot. All the gems stack so two yellows in the gun column is even more bullets

. Based on watching ThisIsAvery play I'm going to increase the percentage effect of each gem so you notice it more. All the upgrade UI stuff is placeholder right now. If you get 4 gems of the same colour in a row that gives you an extra slot in one of the columns. The reason I haven't used drag and drop is that the primary control for the game is going to be a 360 controller, there is just a chrome update related bug which killed controller support the weekend we released alpha

..... so you use the d-pad to do your upgrades.
I'll leave it there for now, I've made a check list for me and Barry to work through over the coming few weeks. Thanks again!