Originally posted by kirisute:

and be aware that Tar has a fluid dynamics...so you can dig the pit downhill and it will flow away allowing for more tar collection of the stuff "stuck in tar"

This is the biggest stealth update in H&H, dynamic fluids have *so* much potential if water gets modified to follow the same rules later.

Given there are already third party tools to roll back exploration of older saves or transfer your buildings to new worlds, I say IG made the right call focusing their efforts on core engine upgrades.