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Playnite
Video game library manager with support for wide range of 3rd party libraries and game emulation support, providing one unified interface for your games.
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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.
People already told you most universal essentials but if you play games on your PC and have them scattered through different stores/platforms: Playnite
Yeah, Google doesn't even allow a Chrome version of Privacy Possum. It interferes too much with their revenue streams. I've always trusted Mozilla more because they don't have a profit motive that conflicts with your privacy.
Since you're Blender fan, I will mention Blendfarm which is the best render farm software I've found.