You've probably played all sorts of games, from board games to hide-and-seek. Here are some different types of games that might inspire you.
A special eye-spy game - where you have to look for something to do with science (e.g. a shadow)
A hunt-the-object game - where you hide science objects and give points to people that find the most (you could make it harder by writing the list of objects as anagrams)
An arty game - where you have to draw the answers
A board game - with different categories of questions
A card game - like snap, pairs or happy families, using science pictures (maybe from your science photo gallery)
No matter how hard you try, you are very unlikely to get your game to work exactly right the first time you try it. Games designers spend hours, months and even years making small changes (or even big changes) to their new games.
Games designers use the following stages when they create new games:
Game design - coming up with the idea
Prototyping - making a rough copy
Play testing - giving it to other people to play and getting and listening to their feedback
Publishing - making the final version.
Games designers can go round stages 1, 2 and 3 quite a few times!
Make sure you test and change your game to make it as good as possible!
Don't forget to write and test the instructions. You know how frustrating it can be if you don't understand that new game you were bought for Christmas, and you don't want your game to get stuck at the back of the cupboard!
When you've created your perfect game, why not tell us about it? If you can send it to us electronically, we can put it on the website for other Young Science Ambassadors to try.