Listening to the podcast linked elsewhere in this thread, it sounds like he’s not at all reached the level of financial independence to indefinitely fund future projects. In fact the only game that went moderately viral (Opus Magnum) is not owned by him at all.

This is really disappointing to me as many of his games are some of my favourite games of all time and I assumed he’d be set for life off them. I guess the target audience is just too small.