I'm not sure if it's correct to say "open sourcing"...
For those who might be interested, I opened the source of 2 of my old games :
- Koto: a rhythm game made in scala https://bitbucket.org/mr_qqn/koto
- Yokai's Song: a small game made for a gamejolt jam https://bitbucket.org/mr_qqn/yokai-... (you can play it here)
I'll later open the sources of my current game engine once it will be more stable and dependent from the game. But I'm not sure if it will be useful compared to a great engine like libGDX.