Souls are the last currency in Mortal Kombat 11. You can use them to open Green Soul Chests or to rebuild the bridge in the Krypt. Kenshi Blindfold also requires Soul Fragments.
Towers of Time - additional rewards
Towers of Time may be a real treasure trove of Soul Fragments. Sometimes you can get a challenge during which you will have to defeat a rather weak Boss. This fight lasts only one round. Win it and you will get a chance to receive a lot of Soul Fragments. For example, defeating Jade presented in the picture above can give you 15 Soul Fragments. Interestingly, the fight can be repeated many times. Some Towers of Time will require you to defeat more enemies. However, the reward will be increased - e.g. 100 Soul Fragments.
Fighting against AI and Online matches
Defeating an AI-controlled enemy in Towers of Time always rewards you with 15 Soul Fragments. Winning Online matches will give you more Souls (35 Soul Fragments). Perform Mercy to receive 2 extra Soul Fragments - provided that you will win this fight after using Mercy.
Set a bot in Endless Tower and get Soul Fragments
The fastest way to get Soul Fragments in Mortal Kombat 11 is to defeat enemies - set a bot (an AI controlled character) in an Endless Tower. More details in the FAQ section of our guide to Mortal Kombat 11.