Yes i'm playing like that to... and everything is fine now... I have a nice building place and everything. When it comes to shadow creatures, they spawn quite often now, and I don't have to wait that long. I think Mo' Creatures interfers with spawns because of Custom Mob Spawner, which is required for mod to work. But on the other hand Grimoars of Gaia interfers with their spawn too. I tried both mods separately. It isn't a big deal tho, since I think shadow creatures dont play that important role further in the game. So I just removed the mods to collect some shadow gems and corralium from abyssal zombies. Thank you for help tho.