We're really looking for friendly neighbors, so these settings may be too passive, but here ya go:

This is probably the opposite from what the other guy posted but I find these settings pretty good for me as an hardcore single player survivalist. Good if you like to feel hunted and want to build defences or in strategic places.
As I get stronger I will increase the AttackerNumbers and AttackerPower and/or AttackBaseAmount


[Human_NPCs_Base_Attack]
BaseAttackNotAllowed=0
AttackBaseAmount=1
AttackerNumbers=5
AttackLoot=0
AttackHutRange=120
StartAttackDelay=480
AttackerPower=50
MinimumStructures=1
AttackChance=100

ahhh you play like me :)

So, I waited to post this to allow sufficient time to test.
This so far has worked out well for us, not making it feel overwhelming while also keeping you on your toes.
Also raised the Structures to allow new players to get a footing.
But I should note I have all my servers set to Dino Levels up to 300 (GUS: DifficultyOffset=2.7142) and Difficulty set to max (?OverrideOfficialDifficulty=10.0)

[Human_NPCs_Base_Attack]
AttackLoot=35
MinimumStructures=30
AttackChance=45

Thanks I do think I will adopt this bit for sure MinimumStructures=30 and lower the AttackChance in the defaults

@ZoneKiller
Is it possible to add a feature to adjust them to attack with better armour/weapons & riding dinos based on tier of Base & its dimension? (e.g. if its a small wood base , as default 5 NPCs with leather dress-3waves, if it's a huge tek base, 25 NPCs with tek railgun,tek granates,... & tek suite)

@ZoneKiller
W suggestion above, the raid difficulty should depend on structure count and player level to really enhance SP gameplay and kinda give off a 7days aspect. Would also be really cool to see NPCs have tames both in villages (to defend) and in raids (riding or fighting alongside them). I know it's a lot to ask for a modder cause these features would be a tough implement but you've killed it so far.
In Zone we trust!

Hi, how are you? I'm about to launch a roleplay server on ARK: Survival Evolved. I'm using your NPC mod, and we've been trying to configure it so that I can spawn the NPCs manually with commands, but I don't want them to appear naturally in the world. We thought we had managed to do that, but it turns out they’re still showing up. What exactly do we need to change to make sure these NPCs don’t spawn on their own and, even more importantly, don’t attack or build around the map?