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.
I’m leaving out free games I’ve spent thousands of hours in because they were zero dollars…
So the answer would be Java Minecraft. Got it before beta started and have been playing ever since.
Worst would be rise of the robots. Fell prey to the marketing back in the day and that game is as bad as they say.