I been mulling over for while about what games should be considered a must play for game developers and aspiring game developers. I think almost everyone has an idea of what good games they like to consider, but I'm actually looking for technical reason why a game is a must play.
Every film student is shown certain films that have become considered classic due to the same reason, I'm hoping this will be the game equivalent of that. Example: Shenmue changed the adventure genre by introducing free roam and QTE combined with action combat.
Disclaimer: The games mentioned on this thread(the ones that meet the criteria) will likely end up on a list that I may use in the future as reference for good game mechanics and design.