Honestly that sounds fine. It’s okay if a small game is only entertaining for 10 hours provided the price is reasonable. We shouldn’t expect every game to be an infinitely replayability mill
It confuses the hell out of me that we don’t say that about any other media.
“This movie that I spent $18 per person on only lasts 97 minutes what a rip off.”
wasn’t portal just a mod? very short game, but has some of the most memorable moments in all of gaming