Well to be honest with you, I am not sure if it would be such a good idea. Maybe if the game is massive and huge, but otherwise, I would advise against it. In the past years, everyone kept complaining about how ticalc.org is cluttered with thousands of text-based BASIC games, making it near impossible to find anything there. This was solved by the dividing of directories, though, so for example, all text-based RPGs have to be put in one specific folder. However, since there were so many of them, I don't think a text-based game will spark much interest, even on Omnimaga. Just take a look at Drak's Potterquest game. Almost no one would download and comment, then BAM! on his sequel, everyone is interested because it was no longer text-only.
That's my two cents