Achievements on the Scorbit platform fall into a number of categories. The system is arranged to give designers maximum flexibility when establishing rules, media, and interactive features of the Achievements.
Achievements may relate to a specific title, or they may exist outside a specific title. For example, you may earn an Achievement for Theatre of Magic, in which case we call that Specific. Alternatively, you may earn an Achievement for playing all of John Popadiuk's games, which would be Global. Earning a Venue Achievement for submitting 100 scores at an arcade would be Global, as would earning an Achievement for playing Theatre of Magic at that arcade. Most Achievements you find will be Specific.
There are two types of Permanence for Achievements, Permanent and Trophy. Most Achievements earned are Permanent, and you have the forever once you unlock them. However, there are rare Achievements known as Trophy Achievements, which can only be held by a single user. If you win the Trophy Achievement, you take it from the last person who held the Trophy Achievement. An example of a Trophy Achievement might be the highest score on Medieval Madness at Ground Zero Arcade.
There is a sophisticated rule engine underlying how Achievements are unlocked. Some are boolean, some count specific actions or combination of actions. Ingredients for Achievements could be venues, scores, targets, modes, duration or time, ball count, amongst many other things. There really is no limit to the Scorbit Achievement platform, only the imagination of the designers.