Yes feel free to reuse the code. Thanks for the catch! Just looking at it briefly, it seems it should have '!'. I have reused this code for many of my scenarios, overlooking that bug! Ha! Many thanks =) if (!sqrList.get(i).isClosed() && sqrList.get(parent).getG() + cost < sqrList.get(i).getG())

Yeah danpost is correct. Execution speed is used for progression. Was an quick avenue, as it was a quick project. It should be at a decent framerate before long. By the way, does it seem the bugs are gone?