I totally made a submod for thatOh, and it's personal preference, but I'd love to have the ability to colonise Valyria...yes, it's completely ahistorical, but remember, only the player can colonise a state (as far as I know...I've never seen the AI do it), so it really just means the player has the option to do it if they want, and they can ignore it without it affecting their game at all if they want a more accurate game.
Also the ai can colonise as well, they get a maintenance event to prompt them to do it sometimes if they meet the conditions
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