Open Source Games

Does anyone have some links they are willing to share to some simple open source games I can explore?

You can find source for some simple games in the examples that come with Xojo:


SpaceRocks (iOS and desktop) is my favorite.

Thanks Paul good start. I also saw some references in the forum to Xoppybirds but the links are dead. If any one has an active link that would be great. Cheers