I dabbered with RPG maker 2k3 in my early teens now I'm on Linux (Lubuntu 17.04 x64) and trying to find an open source Game engine for ubuntu based linux system I tried to dl gdeveloper from ppa aparently the ppa is for earlier ubuntu prior to 17.04 and i cannot find source code to compile it. also another question regarding steam ik about greenlight program for indie developers how much does it cost for a license to upload it on steam and the requirements?