Hi I'm Grant with FiveMedia, (fivemedia.ca
We recently used libgdx to create a game for desktop and android TV- a great framework for Java game makers.
W'll be putting a space/puzzle/platform we together for this game jam, reusing some of our libraries (and knowledge) built on libgdx.
Tiled is our level editor
And texture packer for making sprite sheets
Pikopixel for art
And sublime text for ide
Should be fun,
Grant