Five Star Gift Ideas

Here are some gift ideas based on your grandpa's love for Half-Life 2:

1. Half-Life 2 T-Shirt: You could get him a T-Shirt that has graphics from Half-Life 2. This will be a perfect clothing option for him to flaunt his love for the game and show his geeky side.

2. Half-Life 2 Book: If your grandpa loves reading, then giving him a book on Half-Life 2 could be a great option. There are many options available such as "Half-Life 2: Raising the Bar", which is an art book with concept art and behind-the-scenes stories.

3. Half-Life 2 Poster: You could also give him a poster which shows graphics or characters from Half-Life 2. He can hang the poster in his room or office, and it will serve as a daily reminder of his love for the game.

4. Half-Life 2 Mug: A Half-Life 2 themed mug can be the perfect gift for your grandpa, especially if he loves to drink tea or coffee. He can sip his beverage and enjoy looking at the graphics and references to the game.

5. Half-Life 2 Mouse Pad: If your grandpa uses a computer regularly, then a Half-Life 2 mouse pad could be a great gift. It will come in handy for him and also remind him of his favorite game every time he uses the computer.

Or you can get him a star map with an important date you share.