Here some ideas on how to implement new sex-based civics, techs, specialist, building and wonders:
1. NEW CIVICS
Mating Civics
Sex Civics
Monogamy/Poligamy/Poliginy represent more advanced forms of legalised mating patterns; you will be forced to choose one of those after the discovery of Legal Marriage (with the AI’s being randomly assigned). They affect diplomacy in single player, e.g. you get a diplo bonus with civs sharing the same legal mating system, and a malus otherwise. (Has no effect in multiplayer.) You may switch among Monogamy, Poligamy and Poliginy but only at a considerable cost (e.g. a “sexual revolution” that lasts for 4 turns.)
Free love gives a happiness boost but non-free-love civs will despise you (“-3 Your civilization is corrupt”
. Also, populace without free love may be unhappy ("We demand sexual emancipation!")
Prostitution is the default sex civic, with no effect. The other’s are as follows:
2. NEW SPECIALISTS:
3. NEW TECHNOLOGIES:
4. NEW BUILDINGS
5. NEW GREAT MAN/WOMAN
Great Lover (Sappho, Don Giovanni, Casanova, Rodolfo Valentino, etc.). Moves on land without restrictions and it’s invisible like a spy.
(1) Can be added to a city as a sex super-specialist.
(2) Can light bulb a sex-based technology
(3) Love affair with enemy leader: Once he/she reaches an opponent's administrative centre (e.g. Palace, Forbidden Palace or Versailles), can be ‘exploded’ to grant a permanent "+10 You have sex appeal!" diplo bonus. The sex (male/female) of each great lover is randomly generated. Great Lovers can only affect leaders of the opposite sex (with one exception: Alexander).
(4) Power of Seduction: can seduce an opponent's great person. This means that the great person abandons the opponent's city and appears (at random) in one of your cities.
6. NEW WORLD WONDERS
7. NEW WORLD PROJECT
8. NEW VICTORY CONDITION
1. NEW CIVICS
Mating Civics
- Matriarchy/Patriarchy
- Monogamy
- Poliandry
- Poliginy
- Free Love
Sex Civics
- Prostitution
- Sexual Slavery
- Sex Caste System
- Decency
- Legal Prostitution
Monogamy/Poligamy/Poliginy represent more advanced forms of legalised mating patterns; you will be forced to choose one of those after the discovery of Legal Marriage (with the AI’s being randomly assigned). They affect diplomacy in single player, e.g. you get a diplo bonus with civs sharing the same legal mating system, and a malus otherwise. (Has no effect in multiplayer.) You may switch among Monogamy, Poligamy and Poliginy but only at a considerable cost (e.g. a “sexual revolution” that lasts for 4 turns.)
Free love gives a happiness boost but non-free-love civs will despise you (“-3 Your civilization is corrupt”

Prostitution is the default sex civic, with no effect. The other’s are as follows:
- Sexual slavery: for each population point you whip in a given city, you temporarily add a sex entertainer (see below) in your capital.
- Sex Caste System: no limit to the number of sex entertainers in each city.
- Decency: no sex entertainers allowed; +2 Health in all cities.
- Legal Prostitution: sex entertainers earn +1 gold.
2. NEW SPECIALISTS:
- Sex entertainer: +2 happy, -1 health, +1 GP point. City more likely to generate Great Lover (see below).
- Geisha: unique sex entertainer, available to Japan only.
3. NEW TECHNOLOGIES:
- Legal Marriage: disables the Matriarchy/Patriarchy civic and enables Monogamy, Polinadry and Poliginy.
- Kamasutra: reveals aphrodisiacs (a new tradable resource) and enables the World Wonder 'Temples of Khajuraho'.
- Feminism: enables Free Love.
- Sex Toys: enables a new building, 'Sex Shops.'
- Birth Control Pill: enables the 'Avoid Growth' button.
- Viagra: the first do discover this gets "blue pills", which in gameplay terms work like hit singles, hit movies, etc. Obsoletes aphrodisiacs.
4. NEW BUILDINGS
- Brothel: +2 sex entertainers, -1 health.
- Sex shop.
5. NEW GREAT MAN/WOMAN
Great Lover (Sappho, Don Giovanni, Casanova, Rodolfo Valentino, etc.). Moves on land without restrictions and it’s invisible like a spy.
(1) Can be added to a city as a sex super-specialist.
(2) Can light bulb a sex-based technology
(3) Love affair with enemy leader: Once he/she reaches an opponent's administrative centre (e.g. Palace, Forbidden Palace or Versailles), can be ‘exploded’ to grant a permanent "+10 You have sex appeal!" diplo bonus. The sex (male/female) of each great lover is randomly generated. Great Lovers can only affect leaders of the opposite sex (with one exception: Alexander).
(4) Power of Seduction: can seduce an opponent's great person. This means that the great person abandons the opponent's city and appears (at random) in one of your cities.
6. NEW WORLD WONDERS
- Temples of Khajuraho
- Moulin Rouge: free brothel in every city.
- Playboy
7. NEW WORLD PROJECT
- Internet porn: instantaneously grants all sex-based technologies.
8. NEW VICTORY CONDITION
- Sex victory: be the first to assemble the Orgasmic Machine!