Without more context, it's impossible to know who 'he' specifically is. It could be anyone from an acquaintance, a friend, or even a family member who has used a real - life - based situation to deceive you.
It could mean that he deceived or manipulated you, and this situation was inspired by real - life events. For example, maybe he used a real - life scenario as a model to trick you into believing something false.
Maybe it implies that he deceived me in a real story. 'Played me' can have the sense of tricking or manipulating someone. So it could be about a situation where he used me for his own advantage or misled me.
In a friendship story. We were both interested in a girl. He played me by spreading false rumors about me to the girl so that she would choose him instead of me. That's a situation where 'he played me true story' can apply.
It could be a story of a game in the context of war or survival. For example, a game that soldiers played during a long siege to keep their spirits up. Maybe they had some kind of makeshift tournament that showed great courage and camaraderie. However, without more specific information, it's hard to be certain exactly what this 'greatest game' refers to.
The main character in the movie 'Monster 2003' was played by Charlize Theron. She completely transformed herself for the role. She captured the essence of Aileen Wuornos, from her rough exterior to her complex inner turmoil. It was a remarkable performance that brought the real - life story to the big screen in a very powerful way.