Sinskaald Rift is south of The Great Desert, the last map. You might struggle playing solo here, so it's best to be level 50 when venturing into this land. There are currently 12 repeating quests which will enable as you progress, so it won't be too much of a struggle to reach level 60 (the max).
This article is a stub. You can help Order and Chaos Online Wiki by expanding it.