I think the issues on Github can give a general idea. Pistons actually work (at least basic pushing/pulling) since a recent update, so we should probably updat

I think the issues on Github can give a general idea. Pistons actually work (at least basic pushing/pulling) since a recent update, so we should probably update that on the wiki. Other than that, I'd say the biggest missing feature is Entity AI/Pathfinding at the moment.