Below is a complete explanation of the mod's features, in order of gameplay. Beneath is a list of features from the old version which have been removed along with an explanation of why.

Each stone has a chance to start with its appropriate Fallen Empire (if that Fallen Empire exists), otherwise it will spawn somewhere in unowned galactic space.

The Stone/Fallen Empire pairings are:

1. Whether by surveying, spying, diplomacy, or passing through Fallen Empire territory, encountering a stone for the first time informs you of having discovered that stone.
   
2. Once discovered, a decision becomes available on any uninhabitable planet you own to Investigate the stone. This creates an archaeology site which explains the history of gem, and ends by unlocking the stone for your empire.
   
3. Once unlocked, simply controlling the stone will grant you the Relic and its abilities

After discovering a stone, there are several ways to keep track of who owns it, and where they are keeping it:

• Having direct sensor intel on a stone's current location
  
• Having enough intel on an empire to know whether they own it (30 intel by default) and its location (50 intel)
  
• Each empire has a policy choosing who they reveal their stones to, regardless of intel

Intel is crucial because the Infinity Stones casus belli is only an option if you know without a doubt who owns it.

All of this information is tracked, for each stone, in the Situation Log

There are a variety of ways to claim stones, some already mentioned:

• Expansion - Owning a stone system means you own that stone
  
• Requisition - If you have already unlocked it, each stone can be brought home by the "Requisition Stone" decision on any uninhabitable planet
  
• Warfare - If you have enough intel, declaring and winning a Seize war will force the losing side to hand over their stones.

Once you own, and have unlocked, a stone, the Relic is yours.

Relics and their abilities are automatically granted, but below are the core mechanics once you wield them:

• Abilities - Each stone tends to have a particular area where its modifiers focus on; for example, the Mind Stone tends to help with political and espionage efforts, and the Time Stone generally speeds things up. Military bonuses are evenly distributed among the stones.
  
• Enhancement - Each stone has its abilities increased and augmented by 2 other stones, leading to incredible benefits when you wield all 6.
  
• Relocation - Once unlocked, stones can be transported between uninhabitable worlds in your borders.
  
• Sharing - A government policy lets you choose who you share your stone-given powers with... if anyone.

• Galactic Community - a line of resolutions can make it illegal to keep your stones hidden.
  
• Federation - laws can force empires to reveal, and even share, their stones with the alliance.
  
• Vassalisation - Subjects are required to share their stones with their overlord, but overlords get to decide it that gesture is returned.

The AI has been fully rebuilt to make use of all the above features, and they even properly budget for decisions like investigating and relocating the stones.

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Stone Mining & Technologies
The "unlock & own the relic" system replaces the old "mine the deposit" mechanic - deposits can never be mined.

The Snap
Unfortunately, not something I prioritised in development. If it returns, I want it to be a more fleshed out process

Usage Events
I never was quite satisfied with how these worked out, and I think I can't think of a good way to implement them