Conquering the home continent should be easy for Teddy, with his +5 strength for all military units on the home continent. That more than makes up for the +4 strength every AI unit gets for Deity level.
Basic Strategy:
Find Militaristic and Scientific City States and gain at least 1 Envoy for the Captial bonus. Get 2 or 5 more envoys, if one has a few Encampments or Campuses respectively.
For the Theocracy timing attack, find Religious and Cultural City States and gain at least 1 Envoy for the Captial bonus. Get 2 or 5 more envoys, if one has a few Holy Sites or Theatre Districts respectively. One needs higher culture rates to reach the Reformed Church civic early, where the Theocracy government is unlocked.
Build 3+ Slingers, beeline Archery, upgrade to Archers, move initial Warrior and Archers to nearest AI and capture all their cities.
Capture at least the Capital of the remaining Civs on the home continent.
Beeline Cartography to access the other continent via embarking one's Carpet of Doom or Settlers when using the Theocracy timing attack (see below for details).
Optionally, build 2 Horse pastures. Beeline Horseback Riding to build Horsemen.
Optionally research Bronze Working to locate Iron. Build 1-2 Iron mines. Research Iron Working to upgrade Warriors to Swordsmen. Optionally build Swordsmen with 2 Iron mines.
Beeline the Macinery technology that unlocks Crossbowmen and upgrade Archers to Crossbowmen.
Utilize more advanced timing attacks or upgrade timing attacks as needed. This may include building Chariots and upgrading to Knights via Stirrups technology. It could also be a Horsemen to Cavalry upgrade timing attack, but this will require significantly more research and delays the win date.
The fundamental idea of a timing attack is to research a military technology at least one Era ahead of the AIs that unlocks a good melee or ranged land unit that can (help) capture cities. Note that at least one melee unit is needed for making the final attack on a city which captures it; all previous attacks are ideally made by ranged units, so there is no damage to one's units when they attack.
Optionally, focus on Faith generation (build Holy Sites and religious buildings) and beeline the Reformed Church civic and switch to the Theocracy government, which allows building land units via Faith. Send at least one Settler to the other continent ASAP that can build a city/cities where the most advanced military land units can be built via Faith in successive turns. Limits the chance that military units become obsolete while sailing to the new world.
Beeline Construction to build one or more Seige Towers. This is the optimal support unit that makes all the other support units superfluous. With one of these next to a target city, all attacking units ignore walls and do full damage to the city. The Seige Tower never becomes obsolete.
So, a new save then? When can we expect to have the new save?
