# 9.2 Maths Corner

**URL:** <https://community.gemsofwar.com/t/9-2-maths-corner/89657>\
**Category:** Community Content\
**Created:** [May 13, 2026, 8:26pm UTC](https://community.gemsofwar.com/t/9-2-maths-corner/89657 "2026-05-13T20:26:36Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![Jeto](https://sea1.discourse-cdn.com/flex019/user_avatar/community.gemsofwar.com/jeto/32/101682_2.png) [@Jeto](https://community.gemsofwar.com/u/Jeto)\
**Post date:** [May 13, 2026, 11:30pm UTC](https://community.gemsofwar.com/t/9-2-maths-corner/89657/11 "2026-05-13T23:30:03Z")

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> [@Zuul-Emo](#):
>
> From what I understand of the population system, you can only buy the next kingdom prestige level if your global population is high enough (the right column), which means your other kingdoms are a high enough prestige level.

this has an example to go with it and explain in the blog

> [@9.2 Crystal Kingdom: A Deep Dive!](https://community.gemsofwar.com/t/9-2-crystal-kingdom-a-deep-dive/89654/1):
>
> Your Global population and the amount required is displayed under the XP bar. **Green** total population required means you have met or exceeded the amount required.
> 
> ![](https://us1.discourse-cdn.com/flex019/uploads/gemsofwar/original/3X/7/b/7b9b852969cb0b4b19e969fce86cf7a300bb279c.jpeg)
> 
> But when going from 12 to 13, I do not have enough Global population (shown in orange). So, I am unable to exchange any further Crystals for Mist of Scales. Also, the Exchange button is greyed out.
> 
> ![](https://us1.discourse-cdn.com/flex019/uploads/gemsofwar/original/3X/7/6/76614d1bc695679a8fd17cf9f3309915a6724f76.jpeg)
> 
> **What does that mean?**
> 
> To increase your Global population, you need to increase the Prestige levels of other Kingdoms that you have met the population requirement for.
> 
> Continuing with my example, to increase my Global population, I can go to Forest of Thorns and upgrade their Prestige level, adding to my Global population!
> 
> And so on.
> 
> ![](https://us1.discourse-cdn.com/flex019/uploads/gemsofwar/original/3X/e/4/e422cfa8670ae2b488b5436048d952b9741ac8be.jpeg)

> [@9.2 Crystal Kingdom: A Deep Dive!](https://community.gemsofwar.com/t/9-2-crystal-kingdom-a-deep-dive/89654/1):
>
> ##### **My Kingdom Prestige level is currently 15, but the Crystal exchange screen is showing level 17 \> 18, where is 16 \> 17?**
> 
> If you have completed Kingdom tasks and earn enough Kingdom XP to meet the requirement for the next Prestige level (or levels in this example) but you don’t have enough Global population, your XP will be banked.
> 
> ![](https://us1.discourse-cdn.com/flex019/uploads/gemsofwar/original/3X/1/b/1be295605994587a3efb9338fe900d95186a9230.jpeg)

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