Gamification is about understanding what it is that makes games engaging and what game designers do to create a great experience in games.

句子整体结构为：A is about doing what it is that does sth+adj.and what B do to do sth

前半部分为“主语+谓语+宾语+宾补”结构，后半部分为“主谓语宾+目的状语+方面状语”结构

解答如下：

what为连词引导宾语从句,宾语从句作动名词宾语，宾语从句是“一个强调句型”,强调句型是对“主语”的强调。

A:句子整体语法结构分析如下

(1)Gamifiation为名词作句子主语

(2)is为句子系动词

(3)about understanding what it is that make games engaging and what game designers do to create a great experience in games.为介词短语作句子表语成分

B:作表语的介词短语的语法结构分析如下

(1)about为介词与后面动名词短语一起作句子表语成分

(2)understanding what it is that make games engaging and what game designers do to create a great experience in games.为动名词短语作介词about的“宾语”成分。

C:动名词短语语法结构分析如下

(1)understanding为动名词，与后面what宾语从句构成动名词短语

(2)what it is that make games engaging and what game designers do to create a great experience in games.为what引导宾语从句，宾语从句有包含一个强调句。“It is+主语+that结构”

C:强调句语法结构分析如下

what it is that makes games engaging and what game designers do to create a great experience in games，这是强调陈述语序，因为做了动名词宾语，所以要使用陈述语序。

备注(1)：第1个what为强调句型中强调句子主语成分。

What it is that makes games engaging(陈述语序）

What is it that makes games engaging(疑问语序）

(1)Something makes games engaging.改为对“对主语强调”的强调句型为下面句子

(2)It is something that makes games engaging.对something提问，用疑问词what，就变为下面句子。

(3)What is it that makes games engaging?

备注(2)：第2个what为强调句型中强调句子宾语成分,what作谓语动词do的宾语，后面为不定式to create a great experience in games作目的状语。