Many such pieces of software exist both backed by non-profit foundations, and not. Before the Linux kernel was running the world, it was primarily maintained by volunteers. Also consider the myriad of Linux distributions that don’t have corp overlords. Or pick a *BSD. Or anything you watch video content with: ffmpeg, vlc, mpv. Or even various programming languages such as ECMA Script, Python, Ruby, C, C++, etc. Hell, even Lemmy fits into this category. There literally is a whole slew of software not directly backed by money and still maintained that literally runs the world.
I really enjoyed the game until The Event. I played a few more loops and was constantly irritated at The Event getting in the way. Like, I get it. I understand that is the point. It just ruined it for me. I don’t want to race a clock when I am exploring.