Talk:Custom Game Engine/@comment-70.58.10.88-20130515075548/@comment-86.137.231.246-20130515191020

Selling a game engine isnt possible but you can do something similar...

When you have created your 10th engine, you will unlock a R&D lab research for Liscense Custom Engines. Once you complete that research, you will have access to researching Software Developement Kit via the staff or your character. When thats complete, you can include Software dev kit in your next load of engines which you can make money off :)