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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.
The original Rogue was commercial (Epyx sold it- https://en.wikipedia.org/wiki/Rogue_(video_game)) ) and the code has been released (https://github.com/Davidslv/rogue).
Delver?
NOTE:
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Hence, a higher number means a more popular project.