With the release of civ 6 I'm pretty confident civ 5 is in stable mode. Thus I am thinking of buying it on Steam. Modern games with tons of DLCs can be a bit confusing, though. Which expansions do I need? If I get BNW, do I need GNK? The map and civ DLC I don't really care about. For me anything above 12-15 civs is overkill anyway.