Now that I just discussed with JFD about my planned function with Gary's Mood, I think it's a good time to share it:
Gary's Mood System
As Gary is an unstable person, you must maintain your stability through a new yield called Mood (not to be confused with WFTW Mood). Mood increases/decreases over time, and it is your charge to ensure that it remains at a healthy rate. As your Mood changes, so too will drop your 'Mood Level', and with it will come new benefits or penalties.
The maximum threshold (if possible) will be 200 points (+50 in the Information Era, +25 with the 'Free Thought' Policy from the Rationalism Tree and +25 with the Bullworth Academy National Wonder), while Gary's default maximum Mood in the beginning of the game is 100 points. Every era passed increases the maximum threshold by 5 points (with the exception being the Modern, Atomic and Information eras, which increase the maximum threshold by 10 points (if Enlightenment Era by Pouakai is active, only the Atomic and Information Era increase the maximum threshold by 10 points.
Mood Levels:
Sophisticated (>170)
Bonusses:
+25% more

Golden Age Points from excess Happiness
+25%

Great People Generation in all cities
*Peacefully annexing a city-state requires 1 less Claim (for Medium and Strong Claims) and 1 less Dignitary to spend (with RTP)
Gain a 5%

Science Boost from every civilization you have befriended
If you were declared war by another major civilization, the major civilization suffers a -10%

Combat Penalty in your territory.
City-States which are at least Friends may gift you Medicationists.
*Increases Prosperity Value by 50% (with Emigration, most likely not working)
Increases rewards from specific events and decisions.
Increases the likelihood of positive events occurring.
Well-versed (110-170)
Bonusses:
+10% more

Golden Age Points from excess Happiness
+10%

Great People Generation in all cities
City-States which are Allies may gift you Medicationists.
*Increases Prosperity Value by 25% *with Emigration, most likely not working)
Slightly increases rewards from specific events and decisions.
Slightly increases the likelihood of positive events occurring.
Stable (75-110)
Default status
Unsafe (40-75)
Penalties:
10% less

Golden Age Points from excess Happiness
-10%

Great People Generation in all cities
*Decreases Prosperity Value by 25% (with Emigration, most likely not working)
Slightly decreases rewards from specific events and decisions.
Slightly increases the likelihood of negative events occurring.
Increases Crime from Corruption by 50% (with CID)
Stir-Crazy (<40)
Penalties:
25% less

Golden Age Points from excess Happiness
-25%

Great People Generation in all cities
*Decreases Prosperity Value by 50% (with Emigration, most likely not working)
Decreases rewards from specific events and decisions.
Increases the likelihood of negative events occurring.
Increases Crime from Corruption by 100% (with CID)
One of the cities you own may experience Resistance for 1 turn and produces 1

Unhappiness per

citizen (wears out after Resistance ends).
The Mood System seems highly unbalanced at first, but Gary is a crazy person and so does his Mood shift very often. It heavily promotes spending Medicationists and thus you must take a religion to actually acquire Medicationists.
Every Turn, your Mood will normally decrease by 1. In addition, the following actions affect your Mood:
- Decreases by 1 for every passed era (1 in Classical, 2 in Medieval etc. to 7 in Information Era) (If Enlightment Era is included, it also will count, so, 4 for Enlightment, 5 for Industrial...)
- *Decreases by 1 for each city not following your State Religion (with Piety)
- *Decreases by 1 for every excess
Unhappiness
- *Decreases by 2 for each Civilization following your State Religion with whom you are at war (with Piety)
- Decreases by 2 once you have adopted an Ideology
- *Increases by 1 for every 10 excess
Happiness
- Increases by 2 for every major civilization you have made a DoF with
- Increases by X during a
Golden Age
*Functions I'm currently not sure about (Mostly from Emigration, RTP or Piety/Prestige)
For Gary, Mood may be spent to purchase Dignitaries and Magistrates once per era(with CID/Events and Decisions).
That concluded my thought on Gary's Mood System. Feel free to comment!
In case you don't know who
Gary is or you don't know abour the
Game