Which game was well worth its value that you paid for? For me, I'd say it's Minecraft. Buying it in Beta was pretty cheap (50% of the current price), and it provided many hours of exploration and fun! Although it has been years since I played Minecraft, I think it was the most worthwhile money I spent on a game ever. The runner-up is Skyrim. I got it secondhanded for 35$, I believe, and I genuinely love the Elder Scrolls universe.