Here I'm gonna be posting designs that people ask me to make, designs I might make in the future, and designs that I have no idea where they came from, starting with this trio:
Random Civ I
UA: Homeland Deserters

Trade units sent to\ from your empire grant reveal adjacent tiles and yield +1

science for the owner and +1

gold for the receiver per each 3 tiles they pass. The range of

trade routes is increased by certain technologies*.
UB: Traveler's square
Replaces Caravansary. Unlocked at currency, and is more expansive to build. However, it doubles the range of land

trade routes from this city. It also contains a writer specialist that provides +1

GW point per each trade route to and from the city when filled.
UU: Cartographer
Replaces great writer. Instead of its abilities creates unique

maps that provide additional

tourism and

science instead of culture, and permanently increase the range of

trade routes by 5%(to a maximum of 50%).
*Writing, Philosophy, Physics, and Navigation.
Random Civ 2
UA: Conqueror of the Rings
Cities gain additional territory and start a WLtKD at the

capital upon conquest. WLtKDs reduce the cost of acquiring new tiles by a % percentage equal to the city's population and grant +1

culture from military buildings empire wide. The capital may always expand to new tiles.
UU: Cyberlord
Replaces great general. May be consumed to initiate an invasion, granting adjacent military units double movement, ignore terrain costs and enemy ZOC for 5 turns (doubled for units that require iron). During that time, receive no

unhappiness from conquered\

puppet cities.
UB: Garrison's Post
Replaces barracks. Yields and additional +1 XP for each conquered city its present in, and +5 per each

puppet its present in. Costs no

gold to maintain, and reduces

unhappiness from population by 1% per each city you conquer(2% from

puppets).
Random Civ 3
UA: Naturally Protected
Upon settling a city, gain

production towards defensive\ maritime buildings per each coast and mountain tile within the city's range and in your territory. Cities gain +1

strength per each mountain and 2 coasts in their territory, and gain a

food boost equal to 20% of their

strength.
UI: Wooden Camp
Unlocked at construction. May be built on non- hill grassland\ tundra, and not adjacent to each other. +1

food, and +1 food and

culture if adjacent to mountain or a source of water(bonuses doubled If stack). Generates +2

strength if adjacent to a mountain, and +1

production near a coast.
UU: War- Migrant
Replaces warrior. Unlike it, may embark from the start, and receives immunity as well as 20%

combat boost in any tile that provide attrition, except for jungle(with ExCE). Heals if ends the turn on a Wooden camp.