Seems to me that no question can be stupid; you're asking how to accomplish something which isn't (correct me if I'm wrong other folks) possible - but the reason you're asking this is to solve a situation you're interested in; getting games.
First off - how does TC handle the TCE App Listing; well, the /usr/bin/tce-fetch.sh is a good place to look. Here it pairs the current kernel, the current TC version, and the current mirror all together to form the url which is used to fetch things like:
- the app list itself (( seen in /tmp/tags.db ))
- an individual app's description, dependencies, file listings, etc
note - the current mirror is stored in /opt/tcemirror
Unfortunately, the suite of package management scripts are all geared around the currently running combination of kernel architecture, and the TC version ( which can be found in /usr/share/doc/tc/release.txt ) Moreover, if you could point at an earlier TC repo, seems quite likely to me that literal binary contents of the executables would be incompatible from an ABI standpoint; there might be cases where this isn't true - I am not an expert at all.
But - as to your goal - getting games. You have many options. One can request new (or renewed) packages in the appropriate forum for that (( which is
http://forum.tinycorelinux.net/index.php/board,46.0.html )) - one can download the source to games which provide their source and build directly - one can run precompiled games, so long as the underlying dependencies are met. (( for example - I've used a handful of the Humble Bundle games on TC 11.1 x86_64 ))
So - your question wasn't stupid; I hope my answer helps give you the next direction to go in for this...
Good luck,
Lexi