This is a good idea for a thread. Modding companions into the game, btw, shouldn't be too difficult. The main difficulty at the moment comes from the fact that all the environments are hand-drawn, so there isn't an easy way to create maps. But editing existing maps, adding NPC's, and adding conversation nodes for reactivity throughout the game should be possible for someone with the know-how. The reason I say this is because FNV's very active modding community have created quite a few custom companions, and it would be cool to see the same thing from PoE.
I want to add a couple of thoughts (actually, thoughts from Chris Avellone) from pre-release. Namely, this blog post on companion characterisation and a backer update that covers companion design as one of its topics. I thought it might be more interesting to see how Obsidian design their companions, so that any player-designed ones fit into the game world more seamlessly. There's also this hilarious and thoughtful backer update by Eric Fenstermaker. One major thing mentioned in these updates that I feel that the suggestions in this thread are lacking is a description of the companions' internal conflicts, how these conflicts are examined/resolved by their quests and the game's narrative, and how those conflicts reflect on the overall themes of the game and the player's own quest. How, for example, does this character react to the revelation that the gods don't exist? To that end, may I suggest a modified template, based on the briefs used to summarise the existing companions (the example I'll use is Aloth):
But what are the game's central themes? My personal feeling is that a lot of the game's narrative is tied up with knowledge, how to obtain it, and whether it holds the answers. This is appropriate as the setting is in the embryonic stages of its own scientific revolution. Nearly every companion's personal journey has elements of this: Kana's is most explicit, but it also features prominently in Sagani, Edér, and the Grieving Mother's quests. It is maybe most obvious in the animancy aspect of the storyline, but it also surfaces elsewhere. Another theme I have noticed is faith, in the gods or in authority in general, and the ways that doubting your own faith can motivate your behaviour (most notable with Thaos and Iovara, but also in CNPC's such as Hiravias and Aloth). There are a couple of other articles I've seen written by people who most likely have a much better idea of what they're talking about than myself, namely here and here. But maybe we should be ignoring these articles and my own thoughts—one of the things that player-created companions offer is a unique opportunity to have those companions reflect their creator's own interpretation of the game's themes.
I may add my own ideas for companions later. I have a couple of ideas for characters that I'd like to explore, but I'm very busy at the moment and haven't had the time to develop them (besides, my field isn't writing, or even the arts in general—this is very much a hobby for me).
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