There is an application - half forgotten - that claims to be the first GNUstep game: GShisen. It is part of of the large number of programs Enrico Sersale worked on.
The application has its roots 9 years ago and its code, and project is old, although it still works fine.
I intend to make GShisen part of the GNUstep Application Project: development in GNUstep has taken long strides and I want to update GShisen for it: a modern ProjectCenter project and not hand coded files, GORM files for windows but also menus, which were hand coded in main.m! As well as standard ways to show Infopanels, dialogs, etc. Things are so convenient now. The advantage is also that the code size gets smaller!
For the first release, I do not intend to add any new features, the user won't notice the difference.
Stay tuned! (Or check GAP cvs for progress)