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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.
If you're asking about languages, Unreal uses primarily C++ (from what I heard with optional plugins for other languages, e.g. C#) whereas Unity uses C# (and optionally UnityScript - basically JavaScript). I don't know of any engines that use Rust, but you can surely find graphics libraries to have an easier way to display your game (e.g. Raylib with Rust bindings.
If you're asking about languages, Unreal uses primarily C++ (from what I heard with optional plugins for other languages, e.g. C#) whereas Unity uses C# (and optionally UnityScript - basically JavaScript). I don't know of any engines that use Rust, but you can surely find graphics libraries to have an easier way to display your game (e.g. Raylib with Rust bindings.