Game tips
Items on the map are different every time
Items required to acquire technology may not always exist.
It's like as in the real world,
there are regions where lions live and where they don't, or
there are regions where bananas grow and where they don't.
Don't give up and try again and again.
Sometimes listen to music
How do you feel when you listen to music that plays as time passes?
Is it comfortable?
Do you feel lonely?
Music is closely tied to the map's environment.
Sometimes get up and go back to the map
When humans are asleep, they are actually calculating something other than food.
That is the "soil fertility"
Think of "soil fertility" as something like the thickness of the soil layer on the ground.
Crops can grow in land with "high fertility = thick soil layer", but
crops cannot grow on land with "low fertility = thin soil layer".
If you keep planting crops on the same land, the soil layer will gradually disappear.
When soil fertility falls below a certain standard, it becomes a desert.
That's what actually happens in the real world.
However, the soil fertility will gradually recover (but it takes time).
There's an ecosystem in this game.
In fact, the answer to the question posed earlier, "Why are the colors of the grids slightly different?" is that
the darkness of the color indicates the soil fertility.
Desert Grids Recover Slowly
In this game, it takes about 100 years for a desert to return to a meadow.
During that time, you cannot create field on that grid.
Meadow grids recover twice as fast as desert grids.
The fertility of field grids decrease every year, but the fertility of meadow grids recover every year.
So...?
Take a closer look at the report

The report that appears when you complete the game contains a lot of important information.
Temperature, rainfall, what kind of plants were growing, what kind of animals existed, etc.
These should be hints for acquiring new skills in the next game.
Actually, “regenerative power” is the key
In this game, the power of nature is called "regenerative power".
If the "regeneration power" is high, you can harvest a lot of crops and fruits.
The soil's fertility will recover faster, and animals can give birth to many babies.
The "regenerative power" increases as the temperature and rainfall increase.
It is the same as the fact that plants grow faster in regions with higher temperatures and humid.
You can check "regeneration power" in this line of report.
Check the parameters

Once you clear 100 years, you will be able to see the parameters in the game.
Once you acquire the skills, you will be able to adjust these parameters yourself.
In order to acquire new technology, it may sometimes be necessary to change parameters.
Population growth rate depends on technology
During the hunter-gatherer era, when humans moved from place to place, women could only give birth to a child once
every four to five years.
Because she couldn't carry more than one baby when she moved.
It wasn't until humans started farming, stopped being nomadic, and were able to raise livestock to obtain milk
that
women were able to have children every year.
This is a very important fact, so it's one of the things I wanted to express in this game.
Parameters related to population growth can be found in these lines on the parameter screen.
Fruit trees are difficult to regenerate
Turning fruit grid into field grid reduce your food amount from fruits.
Once fruit trees are gone, they are difficult to regenerate, so be careful.
Even in the real world, in the long history of humankind, it was only very recently (during the Greek and Roman
eras) that humans were able to cultivate fruits like apples and peaches.
The goal of the game is not just one
In this game, time continues to move forward even if humanity becomes extinct.
In fact, the survival of humanity and population growth are not the goals of this game.
What kind of future do you wish for the earth?