This is a SPLithium guide for Let It Die: Inferno (LID). This guide covers how to farm SPLithium, how to use it, how to find Weeping Skulls, and which enemies drop SPLithium.
Table of Contents
How to Farm SPLithium
Get SPLithium by Defeating Enemies

SPLithium is primarily obtained by defeating enemies. The amount you receive depends on the enemy type, with higher-tier enemies dropping greater amounts of SPLithium.
Collect Floating SPLithium

Inside the Hell Gate, blue, circular SPLithium occasionally floats around the environment. You can collect it simply by touching it, and floating SPLithium appears as blue on the SP Radar.
Crouch and SP Radar GuideDestroy Weeping Skulls

You can get SPLithium by destroying a Weeping Skull. A Weeping Skull has two stages of destruction, dropping a large amount of SPLithium at each stage. Keep attacking it until it's destroyed to collect all the SPLithium.
Note! | Weeping Skulls appear as a blue icon on the SP Radar. While destroying them, stay alert for surrounding enemies. |
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Defeat Yummies' Lollypods

After defeating a Lollypod in the Demon Gate Labyrinth, you can get SPLithium by interacting with it (Square on Controller / F on Keyboard). It takes five hits to fully defeat a Lollypod, but they're easy to deal with since they barely move.
Boost SPLithium Drops with Mastery and Gear Perks

Equipping Weapons or Armor with the 'Acquired SPLithium +X%' Perk or unlocking the 'Acquired SPLithium +X%' Mastery increases the amount of SPLithium you get from enemies.
What Is SPLithium
Energy Resource That Is the Goal of Exploration
SPLithium is an energy resource that players need to bring back from Exploration. Your role is to go on Explorations and bring back the specified amount of SPLithium.
Converted to Points Upon Evacuation
Upon Evacuation, the SPLithium you possess is converted into points for raising your Mastery Points or Raider Rank. After conversion, your SPLithium total will reset to 0.