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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.
Lua is a great language, and it's also very beginner friendly. You can also download love2d, a game engine that lets you make games easily in Lua. Here's a link to love2d's website and a link to the wiki, which has pretty much all the information you need to start making games using the engine. I do recommend looking up a Lua tutorial before getting into making the game though.
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.