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Interesting, thanks. I am especially interested in the idea of introducing player-defined concepts.

Would you be able to recommend a Datalog implementation that allows independant n-ary relations. Ideally one I can use from Python or Javascript in a sort of sandboxed way, as I am doing with Datascript, but if you have any recommendation at all it would be helpful to me.

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DataScript already supports processing n-ary relations, it's just not how the data is naturally stored when you use `d/transact!`. Even though it's all in-memory anyway (ignoring the recent addition of durable storage on the JVM) the main benefit you get when 'storing' data is the suite of persistent B-Tree EAVT indexes. DataScript also let's you store plain vectors (and most other objects) as values, which you can access from the Datalog, so it's very flexible really. And learning Clojure is good fun.

If you want to try something more exotic I would be tempted by https://logica.dev/ + some flavour of SQLite (potentially in-memory/WASM).

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