But TERA on Xbox is not a great MMO. In its current state, it's not even a good one. In a few patches, TERA might be good. As it is, any other MMO on the marketplace will offer a better experience. All this publication's reviews; Read full review; User Reviews. Write a Review. Score distribution: Positive: 1 out of 2. Mixed: 0 out of 2. Negative: 1 out of 2. Magma17. Apr 25, 2018. 8. Problemas.