The first one, the mc is given two maids by the goddess from the sun and moon race. He conquers a tower and develops it, adding in more buildings and races into his community. The second one, the mc is some sort of black mage. He makes friends with a bunch of beastmen but they ended up getting killed by the holy church faction in the new world. Their corpses were put on display and it was quite gory. The mc swore to take revenge against the holy church faction. It had a similar vibe to Berserk.

I'm literally a rock.

First one is Tono no Kanri o Shite Miyou and the second is Kuro no Maou.

~4400 manga completed
~1700 ongoing...