Including DLC, micro transaction purchases, etc. If you got a game for free, please also list your non-infinite next best.
For me it’s Team Fortress 2. $100 total spent on hats and the Orange Box back in the day, 4200 hours plus of fun, meaning 2.3¢ AUD per hour. Initially I thought DotA2 would be my best but it turns out I’ve spent a lot more money in that game than I thought…
My worst is God of War: Ragnarok. Bought it full price for $95 AUD, only played 2 hours and hated it, meaning $47.50 AUD per hour.
The Sims 2. I paid for all the extensions, so quickly calculated, something around 300€ in total, back then. But I’ve been playing it for twenty years. I do not know, how many thousand hours I have on it, so I cannot calculate the price per hour, but I think it is pretty low at this point. And still getting lower.
// The least I do not know, I do not play many other games.