Alternative has both of those in spadesCaramel Frappe said:3. Katawa Shoujo
Showed me that games based on anime school girls don't have to revolve around fetishes, sex, and some odd ball stuff I won't bother mentioning.
4. Mass Effect (1-3)
Got me to acknowledge just how important a game's plot really was.
OT: Super Mario World and Mega Man X
They are both one of my first games which got me into gaming and showed me how fun and challenging games can truly be.
Halo 1 and 2
Halo 1 got me immersed in the world and was my first shooter I cared about the people in it. Halo 2 showed me just how fun FPS multiplayer can be and can bring together friends at a party.
Call of Duty 4
My first call of duty game and the one that I have enjoyed the most. Showed me how a game can have a great campaign and a very fun multiplayer.
Katawa Shoujo
My first visual novel and the game that made me cry in so many ways. It is in a special place for introducing me to this genre.
Muv Luv Alternative
This game is just wow, does so many things differently and that I did not expect. Takes the harem genre and turns it upside down. One of the few mechas I have enjoyed immensely and the one to make me cry a lot. Even with some of the criticism I have for it, it is still a game worth playing.