It's .NET, Azure, SQL Server, Windows. We're definitely an anomaly in the start up space here but all of the engineering team worked at Microsoft at some point in our careers, some of us on those very products. So all else having been equal we went with a stack we had a hand in building and we were familiar with.
Our revenue model doesn't focus exclusively on global time played. So we hope to minimize time wasters that aren't fun. But you're absolutely right, there is definitely risk there. We hope our curation will also help combat that, since it's something we want to actively avoid.
Our client acts as a downloader, installer, and launcher. So the game is installed on your local machine entirely. We don't remove the games when you unsubscribe, they just become locked. That way you can pick up where you left off easily.