Why code a module when it can be done via a irc client . Easy enough to code a bot that would respond to triggers such as !8ball etc. Most scripts include the games already.
This is my opinion too. I, and perhaps others as well, don't feel like coding hundreds of gaming modules just because "it would be cool", and bots (like Eggdrops) should do this job. For me Games = Services, and not something what is related to the most important functions an ircd should provide.
Also for security ('least privilege') and bugs (think 'crashbugs') it's much better to have a seperate client do it (eg: a bot) than to implement it in the irc server itself via a module. Plus, you can use a bit higher level programming languages than C ;).