They are simply, randomized dungeon systems that consist of random areas and monsters.
Opening a Nephalem Rift
ARiftcan be activated in any encampment by clicking onNephalem Obeliskin it.
Opening the Rift is completely free and doesn’t require any additional items or keys.
The dungeon stays open until all players leave.
The portal can be closed after killing the Guardian and talking toOrekin town.
The dungeon consists of several levels, usually there are five or six of them.
Its size depends on the quantity of monsters inside of it.
It means that this area is inhabited by the amount of monsters which is enough for summoning the Guard.
The Riftchallenges are made easier by implementing new environmental objects, Pylons.
They are somewhat different from the standard ones.
For the sake of example, Conduit Pylon can be very useful when used before the final fight.
There is also a chance of looting aspecialKeythat will give you access toGreaterRift!
Although, there are no solid proof for that thesis yet.
To open a Greater Rift, you just have to select this option in Nephalem Obelisk.
It costs you one key to enter a rift every time.
you’ve got the option to obtain the key by killing a Guardian in a regular rift.
In the rift menu, you’re free to choose to difficulty level.
As you progress in the game and complete higher levels of rifts, the list will get longer.
When you complete the whole bar, it’s time for a standard fight withRift Guardian.
The reward for defeating theGreater Rift Guardianis however greater than for defeating an equivalent guardian in a regularNephalem Rift.
Beyond getting a drop, you will also be enabled to meet a new NPC -Urshi.
The ghost, as a reward for your bravery, can upgrade the Gem that you’ve just obtained.
In return for your courage and prowess, this ghost will do for you one of two special things.
She may upgrade theGemyou’ve just found or upgrade theGreater Rift Keystoneused earlier.

By upgrading theGemyou will improve its properties so it’s the best option.
Gems rank 25 get an additional attribute so it’s worth upgrading them.
If you decide to upgrade the gem, you will get three chances so you can do it.
The success depends on two factors: current gem rank and greater rift rank you’ve managed to accomplish.
The exact correlation is presented in the table below.
The first column contains the difference between rift level and gem rank.
The other one - chance of improvement in percentage.
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