Thecoli is obsessed with game but I've never seen any poster actually lay out, clear as running water, the essence of game.
Game is the ability to portray yourself as a strong, confident, leader that is going to add incremental value to her life above any other option that she could possibly choose.
Women are looking for a man that upgrades them on some level. Doesn't have to be financial. Can be emotionally, spiritually, intellectually, socially.
Engaging in behaviors that she views as what a high value male would do, serves as validation to her physical attraction and justification for pursuing romance.
Weak game is when a man portrays himself as low value and engages in behavior that doesn't build him up as a man to submit to.
Game is not necessary if there is a large discrepancy in physical attractiveness, as that already facilitates the genetic "upgrade". However, when it comes to dating women on your level or women that are regarded "more attractive" your ability to sell yourself as a high value mate is critical.
I know this sounds overly technical, but if you go on dates coming off weak/pathetic/thirsty, or you go on dates sounding strong and confident, you are going to get better results doing the latter.