let's look the translation interface. (excerpt)

将“共治”扩展包与《HUMANKIND™》主程式连接！
《HUMANKIND™》“共治”扩展包内含：
(omitted in the middle)
人类议会
参与人类议会，来国际议院共商国是吧。
议会将允许玩家投票决定全球法则，共同仲裁国际冲突。
无论帝国体量大小，在世界秩序中都有独立发言权，但他们说话的分量将取决于全新的杠杆货币。你们将共同统治世界！

(omitted below)

Everyone can compare the introduction of the English interface. If you know Chinese, you can easily find a mistakes and a fallacies.

First, in this sentence.

“将“共治”扩展包与《HUMANKIND™》主程式连接！ ”

In this paragraph, there is a place called “主程式”"main program"

It's not that it must be a mistake, but this is the steam interface in simplified Chinese, and this word is a habit that traditional Chinese users only have. For this word, there is another way to write it in simplified Chinese, that is, “主程序”"main program". (yes, in English, these two words are the same, but in Chinese, the traditional Chinese habit and the simplified Chinese  habit lead to two ways of writing.)

However, even this word is not a game word,“主程序” "main program" is more used in programming and deep-seated dialogue than in the dialogue content of the game theme.

For this word, there is a best word to use, that is,“主体”  "subject". In English habits, it may be strange to use this word, but in Chinese habits, the word“主体” "subject" is very suitable. At the same time, there is no direct relationship between the word “主体” "subject" and "programming", but it is more popular. The "subject" of Hamburg is chicken, and the "subject" of school life is learning. 

Well, similarly, the word “主体” "subject" can not be used more appropriately here.

Second, let's look at this sentence again.

“参与人类议会，来国际议院共商国是吧。 ”

This is a real mistake. Here, “共商国是吧”"discuss state yes together" is not “共商国事吧”"discuss state affairs together."

This is a simple mistake, similar to "let's eat pissa（pizza） together."

So, the correct way to write it is“共商国事吧”"discuss state affairs together."