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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
I believe Sil started as a fork of Angband, and it's a favourite of mine. You might want to check that out. (I believe currently the most up-to-date version is Sil-Q https://github.com/sil-quirk/sil-q).
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.