Gothic: Dark Mysteries.
It's supposed to be equvalent of G2:Night of the Raven for first Gothic.
It add new factions (Ancients, Smugglers, Camp near Mine, Fanatics), additional stuff to to, new weapons and items and new NPCs. And new problems in quests, like simple quest get complicated due death of one NPC.
What about wackiness (strange, cringeworthy or supposed-to-be-funny things)? Well, I found few things, but you could find them in vanilia too. Not big deal unless you hate modders with passion.
It give some acivities for later part of the game. This is how usually Pirania Bytes games work - 1st and 2nd chapters (or first few hours of the game) flood you with quests. Then last 2-3 chapters you have nothing to do except main quest line, involving serious dungeon crawling.
In Gothic DM you have new separate plot, about mysterious old chapter of Innos guardians, not sure about their english name, something like Ancient Ones (how original).
It include trust gaining to speak with boss, betrayal, few orks to slay and few kick to scaled butts of the dragons, but I remember this quest for two things. First - enormous amount of weapons.
In vanillia you can finish the game with ~25k units of ore (currency in the game), in Dark Mysteries you can finish it with 120k ores. Madness...
IIRC you can get maybe few additional levels. Not a big deal, game is pretty linear in that matter anyway.
Second - new plot start with big disinfestatin. So many big bugs that may crash your game due engine limits reached.
Ah, there's is also new merchant. He give you hard missions to collect stuff. But most important - he have 9999ores in his pockets that renew every time you want to deal with him, and you need to know that other merchants in the game don't do that, except when new chapter start.
There is additional voice acting but it's so atriocious...even old games like Deus Ex sounds like proffesional work compared to this. Not to mention other megamods with voiceacting.
Now I found that there is other big mod for Gothic2 NotR named Global Mod, that add new stuff (factions, items, NPCs, locations etc.) that give good score from Gothic community, plus - translations group add even more content!
It's ~100-200h long, though
for BaK.
