There are currently 4 ways to get the Sharingan, through DNA, having it once you first start (or reset), buying it in our store webstore or using the Coin Shop.
Normal Sharingan
Once you have the sharingan dna implanted or once you start with it, you will need to wait from 2 to 24 hours (real time hours spent ingame) in order to unlock the first stage, the normal Sharingan. When you do unlock it, you will see some messages in your chat and be blind for a few seconds. When that happens, you can press G, or go to controlls to see your hotkey to activating the sharingan.You will also receive a learner, where you learn multiple jutsus, some of them being genjutsu. Once you're done with all the jutsus and your learner doesnt show the name of your next jutsu, it means you do not need the learner anymore (confirm with a staff member first) and you can throw it away. You will also receive Izanagi once you finish, which means when you get to 0 hearts izanagi will activate and you will get 1 more row has a 'second chance'. It take times for it to recover. When you first start, you will only have one Tomoe has your pattern and the chakra cost is high. Once you learn a few jutsus your sharingan will have 2 Tomoe's and the chakra cost of it staying activated will be medium. When you finish the learner you will receive your third Tomoe and the chakra will be at its lowest. Once you finish the learner, your timer starts for the real deal: Mangekyou Sharingan.
Mangekyou Sharingan (MS)
Normal Sharingan. Once you have the sharingan dna implanted or once you start with it, you will need to wait from 2 to 24 hours (real time hours spent ingame) in order to unlock the first stage, the normal Sharingan. When you do unlock it, you will see some messages in your chat and be blind for a few seconds. How to unlock sharingan in three easy steps. Go online order sharingan contacts 2. Open then insert in eyes 3. Close your eyes then open them tada you have the sharingan lol.
After you wait from 1 to 48 hours you will receive a message in chat and a letter. Once you open the letter and you're done with the big message you will have your Mangekyou Sharingan. With your Mangekyou sharingan it comes a learner, with only one jutsu (for now, the mod developer hasn't finished it), Tsukuyomi, Amateratsu (Banned, speak to an admin) or Kamui. You will have your Susano'o cage, or Rib Cage, that changes color, depending on which Pattern you have. The Rib Cage grants a little bit of defense but not that much significant. There are currently 12 patterns: Sasuke, Itachi, Shisui, Obito, Izuna, Naori, Indra, Madara, Baru, Rai, Naka and Shin, each one with a diferent pattern and diferent color for the Rib Cage. The mod creator disabled the multiple susano'o in a previous update and NSO does not want to add them back.
If you did not like your MS Pattern you can always try and get one Mangekyou Sharingan change pass to change your pattern to the one you like the most.
Eternal Mangekyou Sharingan (EMS)
The EMS nomally takes a really long time to be activated, from 1 to 48+ normally. You also need to be above the level 250. When the time comes, you will receive another letter, with coordinates. You need to go to those coordinates (In the PVE world) and right click the letter once you are in those coordinates. Then, you will need to fight your 'brother' and once you defeat him, he will drop the 'Brother Sharingan'. Right click the letter with that item in your inventory. Your pattern will then change to his EMS, and final, stage. This pattern directly depends on your Mangekyou Sharingan Pattern that you had before. Since some of the characters that had the Mangekyou Sharingan didnt have the Eternal Mangekyou Sharingan, some of those are changed to another characters pattern. The patterns are: Sasuke, Madara, Obito, Naka, Shin, Indra and Rai. If you had Itachi's MS, you will have Sasuke's EMS. If you had Izuna's MS, you will get Madara's EMS, if you had Shisui's MS you will get Obito's EMS and if you had Naori's MS, you will have Naka's EMS. Remember that right now the only changes you get with EMS is the fact that it doesnt cost chakra while using it and the pattern.
If you do not like the style that you have then you can get a Random Sharingan (Visual) on the coin shop to switch to the style you like the most.
How To Unlock The Sharingan In Real Life
The theories have been shifting from stuff like 'You have to do an act of hatred', Like Itachi did when wiping out his own clan. Then it became 'You must feel an incredible amount of bad feelings' and such, after Kakashi, and Finally Sasuke unlocked their Mangekyō Sharingans, without actually murdering anyone.
That's all wrong. To unlock the Mangekyō Sharingan, one must get poked in the forehead X amount of time, where X is an variable depending on your genome.
Let's look at some picture proof.
Itachi poking Young Sasuke in the forehead. This might look like a childish act, but Itachi had at that point of time discovered the ultimate truth. He was already planning to unlock the Mangekyō Sharingan for himself, and his brother.
More proof, as Sasuke clearly states this is not an irregularity. He always get poked in the head.
In their final battle, Itachi pokes Sasuke in the forehead, He doesn't 'give' away these powers, or makes Sasuke feel a turmoil of feelings. He just poked him enough times in the forehead.