I love this game concept. I am a builder at heart! All of those settlers are sure to bring the economy crashing down without proper support.
I think four things will drive this game. 1. VC 2. Choosing wonders 3. Diplomacy/AI personality 4. Beakers
Victory condition will drive this game. With No Vassals, I think the only real options are Diplo or AP victory. Conquest may actually be the next best option. Espionage and Cultural rely to heavily on generating a pure GP stream. They require a major diversion of commerce as well and this is certainly not a commerce heavy map. Espionage requires city gifting... its just a "patch" to over come an exploit (WT, was that you??) Domination probably isn't doable with seven cities. Space Colony takes too long.
VC wonders
AP - Prophet
UN - Merchant
Must have wonder
MoM - Artist
Other wonders
GL - Scientist
Kremlin - Spy (GW or Pentagon)
Pyramids/HG/Hagia Sofia - Engineer
Lost Wonders
Oracle - we'll take their tech in trade
Parthenon - Could use GP points, but...
Great Lighthouse - Ouch! This wonder could be huge.
Stonehenge - meh, we are charismatic, but won't be spamming cites. GProphet contamination.
Colossus - doesn't last long enough anyway
Versailles - too many hammers, too small empire
ToA, ChixPizza, Spiral Min, Univ Sankore, Angkor Wat, Shwadegon Paya, Notre Dame, Statue of Zues - meh
Late wonders - meh
I think it would be ballsy to go all in on AP, especially since we can't gift cities to spread religion. But controlling the AP is very important. If we are going to go for a UN victory, we can't be having our diplomacy jerked around by the AP. It would be nice to build TGLighthouse, but I think we need to keep UN option open.
Diplomacy/AI
Unless we go for conquest, we are going to have to tiptoe around everybody. I would imagine the mapmaker will have included personalities that will surely put us in the middle or outside diplomatically.
This make worker stealing more challenging. (As well does no barbs and settlers as scouts)
Controlling the AP in a minor religion will make this easier.
Beakers
Wonder fail gold (Settle stone/marble as priority)
GS bulbing
Mids/rep/CasteSys/settled non-scientist
City and improvement pillaging
Trade routes (No TGL)
Warrior whip overflow
Cottages (Hahahahaha!!)
Random tidbit. We need level 4 unit, so war or fascism needed. No brainer. War.