-
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 an example, see Noel Berry's small engine: https://github.com/NoelFB/blah He's an experienced indie game dev and he has a small framework (engine if you dare calling it) with not that many features, but is a great learning tool if you're starting, and shows that you don't need a big game engine to make good games.
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.