@yannath: I played around with Opensludge a fair amount. Unfortunately the GTK tools are somewhat buggy. If I make large sprites it has a tendacy to Seg Fault all over the place. It is unfortunate cause I like the engine. I have submitted bug reports but unfortunately the issue still exists. Also the video player is somewhat buggy also.
At this point I tempted to run Unity in a VM and try and create an adventure game engine in that. Otherwise I might play around with Love2D.
