Going after certain achievements teaches new ways to play old games.
Mitch Krpata once tried to describe the different ways that people play games. One of the categories that he came up with was the Completist gamer: “A Completist may be less interested in maximizing his ability to play a game, and more interested in making sure he doesn’t miss anything [. . .] The reward is having no mountains left to climb.” (““A New Taxonomy of Gamers: Skill Players: Drilling Down”, Insult Swordfighting, 10 January 2008).
I’m definitely a Completist. I enjoy exploring every inch of a game world for collectibles and side quests. Normally, achievements appeal directly to this compulsion as they are (essentially) another kind of collectible. However, my Completist nature was recently challenged when I played Mass Effect 2 on the Insane difficulty. There’s an achievement for completing the game on Insane, and it taunted me as the only achievement that I was missing, but I underestimated just how hard the increased difficulty would be. I wanted my whole crew loyal for the end, but there were multiple missions that I avoided because I knew how hard they’d be. My galaxy map soon became so cluttered with so many abandoned side missions that it was hard to read the name of each nebula. I had beaten the game once before, so I knew what was necessary and what wasn’t. I constantly wondered, “Should I complete everything, or should I just complete the achievement?” And I wondered why, exactly, I was playing the game on Insane. Was I playing for the challenge or for the achievement?