I don't really get the advantage of open source games. Operating systems and productivity stuff sure -- you want to know what's running on your computer and ide

I don't really get the advantage of open source games. Operating systems and productivity stuff sure -- you want to know what's running on your computer and ideally you want a community that can improve it. But games? First off, the vast majority of games have a pretty short lifespan of relevancy, by the time you're up to speed on the code base there's a decent chance people have moved on. Also a lot of the code isn't even reused among those who have it. If you want the reusable bits for new games, you can already go get an engine like Unity or Unreal, or if you're building your own engine, thousands of great libraries. For the most part source code to games is interesting on an educational level, but not much else.