A mod that builds upon and tweaks the vanilla experience with a little bit of everything:
crafting, furnaces, resources, turrets, vehicles, enemies and weapons.
[Built for base 2.0 Factorio - Works with Space Age]
There should be boss versions of all nauvis enemies to select form, it's that they're not quite in order of size, but more alphabetical (Behemoth, Big, Boss, Medium, Small). The icons could show this better however.