a pipe and pump system that allows to transfer water and maybe to build a watermill - used later to create flour and later electricity
temperature and maybe seasons - cloths must be changed to avoid overheating or undercooling
perishiable items
straw and palm leaves for the rooftop
iron t-beams
maybe bamboo
maybe the straw can be used for baskets too
shingles - maybe made in a kiln
hay (maybe later for the animals)
fish and fishing, insects as bait
more animals in general - im dreaming of red pandas.
wandering animals - later maybe creatures, undead, npcs and kind like that
a defending system - to time you can use a sword or something with rmb and lmb so shields would be great for the one handed weapons
stones and pillars with a higher and shorter curvature angle
grooved structure
crouching seems not working
maybe a special use for the bloodstone?