Question: what are greater rifts diablo 3?
Answer: Greater Rift Complete banner. Greater Rifts (GRs or GRifts), initially known as Tiered Rifts are a special timed type of Nephalem Rift, added in Patch 2.1 and modified repeatedly since then. Grifts are designed to provide an end game play mode with progressively increasing difficultly, plus rewards to match.