Gamerscore vs. True Achievement
Posted by joeabbott on January 20, 2014
In another post I’m discussing Gamerscore and I’d inserted this topic into that entry … and then realize it’s not really germane and doesn’t add to that conversation, so I’m moving it here; a simple discussion of video games Gamerscore vs. True Achievement.
For those who care and many who do not, here are my stats:
Gamerscore is the value allotted to players for in-game actions that carry over from one video game to the next. That is, you get Gamerscore for doing something in a particular game, but the value is assigned to the player. As an example, I completed X-Men: Destiny for a total of 1000GS … but that 1000 goes toward my Xbox Live account and is immaterial of which game gave it to me. You can track from where you got your Gamerscore but, for me, the overall important aspect is that I have 65,000GS … not that I completed X-Men: Destiny (for instance).
True Achievement is the notion that not all achievements are equal or worth their allotted value.
The Simpsons Game has an achievement called Press START to Play that gives a player 5 Gamerscore just for starting up the game. Yup, put in the disk and launch it … *poi-tock*, you get 5GS. Compare that to the game Tap Tiles which has the achievement Go for the Bronze (10GS) that requires playing the game a certain amount every month for a year. On one hand, every player who even starts The Simpsons Game will complete Press START to Play achievement, but for the Go for the Bronze achievement, someone would have to put a year of playing the game in to get it.
True Achievements says that these achievements are not equal and values the Go for the Bronze achievement far more than the state value.
From the True Achievement FAQ, here’s how they calculate the TA value of an achievement:
The formula itself is based on a number of factors…
The first thing that the TrueAchievement takes into account is the normal GamerScore for that achievement – we could have abandoned this completely but we felt that the games programmers had chosen how to distribute their 1000 (or 200 for XBLA) games with good reason (OK, maybe not with Avatar) so we would use that as our base.
We then look at how many people own the game (we decided this by saying anyone that has at least one achievement owns the game – this clears people playing demos out of the stats).
Finally we look at how many people have the achievement compared to how many people own the game – this gives us a difficulty factor which we multiply the original achievement gamerscore by. We call this maths.
Obviously there are a hundred different ways we could have decided on how to calculate the score but we felt that this was the fairest way. If 100 people own a game and only one person has a certain achievement in that game then that achievement is obviously very tough to get, so the TA score for that achievement is marked up considerably. Or the game is extremely dull.
Note, that on any given day, the TA value of an achievement can vary (e.g., if more people earn the achievement); the GS value will not.
Into gaming? Drop by the True Achievement site and sign up!