Thread
This modmod of RFC Dawn of Civilization adds Equestria as a full and largely playable civilization without removing of any of the other civilizations from the game.
Spawn date: 1811
Capital: Canterlot
UHV
-Secure or get by trade 1 Hit Movie and 6 Horse resources by 1986AD
-Get 5 civilizations to Friendly Attitude with your civilization by 2003AD
-Build the Internet by 2010AD
UP:
Power of Friendship
+1
in all land tiles
UU:
Royal Guard
Mobile Infantry
UB:
Cloud Factory
Increases
and to less extent 
Flag:
Celestia's Sun Flag
Leaders:
Celestia, Luna, Discord, Nightmare Moon, Starlight Glimmer
Equestria can be played in the 3000 BC, 600 AD, or 1700 AD scenario. However, they spawn late so I've only thoroughly tested the 1700 AD scenario.
This is technically a standalone mod. It was built on v1.12, SVN commit 787. To play: download the RAR file, and unzip it into your Beyond the Swords\Mods folder. Then start it by selecting "Play a Mod" from the main menu of BtS. Ignore the quickplay shortcut in the mod file, I forgot to delete it.
Updates:
V2 changes a few dynamic names, adds a nif, adds Nightmare Moon and Starlight Glimmer as dynamic Leaderheads for Equestria and changes Equestria's first UHV to require 6 horses instead of 10.
Spoiler :
This modmod of RFC Dawn of Civilization adds Equestria as a full and largely playable civilization without removing of any of the other civilizations from the game.
Spawn date: 1811
Capital: Canterlot
UHV
-Secure or get by trade 1 Hit Movie and 6 Horse resources by 1986AD
-Get 5 civilizations to Friendly Attitude with your civilization by 2003AD
-Build the Internet by 2010AD
UP:
Power of Friendship
+1

UU:
Royal Guard
Mobile Infantry
UB:
Cloud Factory
Increases


Flag:
Celestia's Sun Flag
Leaders:
Celestia, Luna, Discord, Nightmare Moon, Starlight Glimmer
Equestria can be played in the 3000 BC, 600 AD, or 1700 AD scenario. However, they spawn late so I've only thoroughly tested the 1700 AD scenario.
This is technically a standalone mod. It was built on v1.12, SVN commit 787. To play: download the RAR file, and unzip it into your Beyond the Swords\Mods folder. Then start it by selecting "Play a Mod" from the main menu of BtS. Ignore the quickplay shortcut in the mod file, I forgot to delete it.
Updates:
V2 changes a few dynamic names, adds a nif, adds Nightmare Moon and Starlight Glimmer as dynamic Leaderheads for Equestria and changes Equestria's first UHV to require 6 horses instead of 10.