I've added the first half of the campaign / story mode, which takes place in Washington state near Seattle. There are new events and some longer plotlines in there, including some that only appear in specific cities (or when specific factions appear in skirmish mode).

Also more visual improvements and gameplay tweaks, and a whole lotta bug fixes. Please report any bugs from inside the game!

Full changelog:
start of campaign mode with 5 cities
intro before each city
4 new plotlines in campaign cities
plotlines also appear in skirmish cities if they have the right factions
new events
can meet with factions before city hall but can't do war/alliance/schmooze
made higher level techs take much longer to research
made final 3 repeatable techs automatically repeat
removed roaming super mobs from easy difficulty and first 6 campaign cities
faster zooming
smaller min and bigger max zoom levels
improved memory usage from menus
children now grow up immediately when they become 14 after 14 * 90 = 1260 days
more paper textures on the gui
grunge on the map (switched to RenderTextures)
warn and quit training when max level reached
added 25% markup to all trades (DEFAULT_TRADE_MARKUP config variable)
some policies can now be chosen before city hall
roaming mobs only see nearby units
enemy units can walk through woods and hills to reach targets
new art for non-science books and made them work with bookworm perk
max houses is now 250
no more max perks
realtime pauses while looking at building menu, more visible paused state
made info, results, square, trade, and mission menus draggable if you grab the top
made large menus slightly smaller on PC (set light graphics to disable)
fixed display issue on repeatable defense tech multiplier
fixed everyone having the same heads after 300 survivors
fixed memory leak in scrolling boxes
fixed loading player cookie bug with some systems
fixed long load times on cities with lots of survivors
fixed buildings blipping out at edges
fixed crazy slowmo after viewing debug log
fixed wrong face on map when moving to new city
fixed married people still going on dates
fixed results menu memory leak
fixed unecessary cpu load from quest listeners
fixed "ally with 0 factions" and leaving city via city hall during airplane plot
fixed skin weights
fixed survivors appearing where they were before when viewing large stacks
fixed wrong day showing right after load
fixed meeting with factions before city hall
fixed airplane duplicating survivors on next level
fixed meet quests sticking around after faction destroyed
fixed "arg3" appearing in attack results
fixed goats getting multiple parents when they grow up
fixed destroyed factions in gangCrossfire event
fixed stacked happiness events growing in value when you view happiness panel
fixed incorrect skill levels with intense focus perk
fixed units on map maxing displayed level out at 18 (new global max level of 30)
fixed scaling menus and main menu letterboxing on huge monitors
fixed loading notice sometimes not appearing
fixed repeating techs getting double levels
fxied people "staying in the kitchen" when that policy isn't chosen
fixed waiting a day after constitution before leaving when no factions left
fixed missing fuel in distrust event
fixed losing kids down the well when you don't send them in goathole event
fixed meeting with rotten before you investigate them
fixed injury missions still progress during riots etc
fixed bandage not appearing if joining an existing injury mission
fixed autosaving when manual saving
fixed dead factions helping fix a broken car
fixed null result when kids help out
fixed pregnancy across cities (default to 6 months pregnant in new cities)