Ego games are activities that teenage girls typically like to partake in when communicating with their boyfriend. An example of an ego game that a teenage girl would partake in would be posting on her Instagram story but not responding to her boyfriends text. These games tend to involve subtle attempts at displaying ones self-perceived inflated level of intelligence. These games are not only limited to female use but males tend to move in silence.
"I'm sick and tired of my girlfriends ego games."
I just watched my girlfriends snapchat score go up by a one and she hasn't texted back yet, I'm DONE with her fucking ego games.
Someone who identifies more with the character he/she is playing games even when not playing games.
That middle aged guy frothing milk has game ego bad because he's Commander III in The Ultimate Galaxy and that's why he's smiling and looking satisfied with himself, even tho he's making $10 an hour and his 18 year old boss just yelled at him.