Dream Server:
PC Hardcore PvE with mods. RP available (but not ERP). And active Admin(s).
All players that join the server, join the same clan (one big clan vs. the NPCs on the server)
Thus, every building that players build are for all the players on the server (no building to cut people off - no building to obstruct resources - no blocking obelisks). Every player base is accessible and useful for all players.
Combat
NPC damage to players increased at least x2
Player damage to NPCs decreased to .75
Friendly Fire .1
Gathering/Harvest rate .5
XP slowed .5-.75
No XP from Time
Day/Night: Dusk set to .7 (a little slower transition time)
Day set to .5 (longer days)
Night set to x2 (shorter nights)
Knock out thralls - max time
Purge - max settings (but requires players to be online - no offline Purges). Thus, every Purge is a “server event”.
Basically, its a setup that requires players to work together to accomplish goals. Combat is tougher which encourages (but does not require) co-op gameplay.
Mods like:
Litman Thrall Placing Distance
UIPlus Lite
WYSIWIG Wheel of Pain
Multigun’s Less Building Restrictions Overlap Edition & Additional Improvements Add-On
Exile Lands Improved
Warrior Mutator
Fashionist
Char Edit LIte
Pickup+
Just No Rain Only
Kerozards Paragon Leveling - A Multigun Refresh
T4 Thralls - Increased Spawn
No More Human Parts (sorry, Yog worshippers)
Litman Item Stack & Container Size
Extended Cartography
Pippi
For solo (single player) I also use a mod to extend tool duration, increase carry weight, and SP Boss (its for doing everything yourself).
EDIT: To date, I have never found a single server with that kind of a lineup (hardcore PvE Co-op with Mods). I did find a hardcore server once, but the players were isolationists (everyone keeping only to themselves, the admin was absent, and no mods… just vanilla CE).
The mods listed are some of the ones I use in single player. Some may need to be deleted for group play if it makes the game too easy for groups (like T4 Thralls - Increased Spawn).