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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.
As discussed in my other reply, you might be interested in looking at Nuclide (https://github.com/VeraVisions/nuclide). The stand-alone game "The Wastes" is based on it (https://store.steampowered.com/app/793670/The_Wastes/). "The Wastes" sadly only has a very small player base (which means that it's hard to get a multiplayer game started - and it's a multiplayer-only game), but I think it shows quite neatly what can be done with the tech.
Much of DP's development was centered about being a capable engine for new games, while remaining reasonably compatible with Quake. Also, DP's perceived abandonment seems to have been overcome, with DP now being hosted at https://github.com/DarkPlacesEngine/darkplaces with somewhat frequent updates. I guess that Wrath's development may be at play here.