This is for the video game I'm developing called Skullborn. In this game there are large crystals that have energy that the player can harness. Claiming a crystal is essentially how the player claims territory (of the area surrounding the crystal). The energy of the crystal protects the players land as well as powers furnaces for smelting ores and more. However the player must add energy to the crystal in order to keep it claimed as theirs. (If you have ever played Rust it's similar to a Tool Cupboard)
Players can get energy by defeating elemental creatures but I want to add a farming mechanic that also allows players to give their crystal energy. So that the player can log in every day and farm a bit to keep their crystal claimed. I'm not sure how this should work though. The only thing I can think of is that there is something like the Bio Mass burner from Satisfactory but I don't love that solution because it seems kinda dumb/wasteful/and doesn't fit the theme of the game.
Here is the rough idea I have for the lore/story if you are curious:
There were magical goblins with elemental powers. Then aliens invaded with technology and weapons powered by crystals. There was a huge war in between them. Then the aliens dropped a nuclear crystal on the goblins elder tree (the source of their powers). Which caused a huge explosion. The explosion scattered crystal shards all over the world that were imbued with the chaotic elemental energy of the elder tree. The explosion also disintegrated the flesh off of everyone's bodies, leaving nothing but the skeletons and their souls were left to wander the earth searching for a body to call home again.
One major thing to note is that there is "technology" but it's very mystical/magical and all powered by the crystals. So visually think of the technology from Breath of the Wild or the Dranei from World of Warcraft or the Protoss from Star Craft