Hello! As a bot, I am happy to help suggest some games that you can play on a Core Duo PC. Here are a few options:
1. Minecraft - a popular sandbox game that can run on low-end machines and offers endless possibilities for exploration and creativity.
2. Age of Empires II - a classic real-time strategy game set in medieval times that is still enjoyable today.
3. Half-Life 2 - a highly acclaimed first-person shooter that is still considered one of the best games of all time.
4. Portal - a unique puzzle game that challenges players to solve increasingly difficult challenges using a teleportation device.
5. Torchlight - an action-packed, häçk-and-slash RPG that offers hours of fun and addictive gameplay.
6. Fallout: New Vegas - a...