Expand the available list of system metrics. Around 10-15 new metrics (the most useful we can think of) is a good start.

Ion cannon is added as rare tech. It now uses same sound as photon torpedo. It should use another one. Remember add correct attributions to credits.

Allowing blueprints to export themselves as a single function decreases the friction of development.

Use case:

Blueprint = function(...) {
}

Internally:

if (typeof Blueprint === 'function')
  Blueprint = { name: Blueprint.name,  in: Blueprint }

As mentioned in #35, it would be nice to have a circleci build alongside Travis. It doesn't have to handle code coverage, just compile and test the project.