It will be a great game if it can get online play and real-time level editing(coop).
It now have user-content download system.
Still long way to go, first to get Network game-play.
Map also can refine.
how can i disagree with a cute girl? ^^
A category "Game making" under tools is my preferred option.
but as darkhog said this is not for engines, if we want to list engines, we will definitely create a completely new category.
If I understand you correctly, then you can add them to "Tools" (http://www.lgdb.org/list_tools) section (see http://www.lgdb.org/tool/sludge for example). Of course we could add separate section "Game Making tools", but I think there aren't too much of such a tools currently.
However, what we can do is to add "Game Making" category within "Tools" (now game making stuff goes under Miscellaneous category). Let's see what pheonton thinks.
Maybe we could add a category to tools like.. "Game maker" ?
But how many game makers have Linux versions? So far I only found Stencyl, which creates flash games..