I thought about it and now that I think about it more, maybe I could've implemented it. I was actually worried there'd multiple games like this but luckily, I dodged a bullet. Would've still wanted to see your version of this!
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FWIW, I was thinking a doppelganger/mimic-thing in the old west. You rob banks, commit crimes, etc and magically steal people’s features to not get caught (probably the dead ones from the shootout) but you also need to avoid looking too much like the other bandits in the wanted posters in the towns you travel to.