verAchievements.GetRequired

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Additional Information
Every achievement has a specified number at which it unlocks. During the game you increase this number until finally it gets to the number the achievement is unlocked at.

So for example I have the achievement "Kill 50 Enemies" set to 50. In game, I would have the achievement increase by one every time I kill an enemy. Eventually when the achievement gets to 50, the achievement is unlocked. The alternative to unlocking an achievement by increasing it is by using the verAchievements.Unlock function.