La vallée d'Ashkalor mod for Elder Scrolls IV: Oblivion

Here is the presentation of a part of background and contents (mainly translated by reverso.net)

Contents and quests :

About contents, the mod will thus add a new valley surrounded with mountains. The valley will be lived by two main cities: those of the Rodeurs in mountains and those of elfs in huge trees (yes I know that's like Lord of rings ^^) . Somes hamlets will be scattered in the Valley as well as the donjons (caves and the other one). Two new factions will be added, some new weapons (15+) and armors (2 sets) , and somes quests. There will be also a new system of magic including the meditation.

For the quest, it will modify radically the future of the valley, you will have quite a lot of choices has to make, one of which is decisive and will share the quest in two stories: to follow Rodeurs or elfs but you will always have another choice.... The main quest will start to Anvil on rumours on the ramblings of old crazy one inhabitant in the lighthouse. The player will have to speak to the old man to continue the quest and discover the weft of a mysterious and dangerous quest. What will bring him has to discover a new hidden and lost world...

Main cities :

(Being able to be seen on screenshots)

Ildarian :

Ildariän was based more than a thousand years ago by Durën, descendants of ayléides. Its batiments are perched on huge platforms, in trees. These magic trees are immense, and so form a gigantic forest.
Ildariän consists of several social classes: the farmers, the storekeepers, the noble persons and the royal family without speaking about servicemen. The city is prosperous and does not shelter beggars.
This prosperity is due to the economy of Ildariän which bases itself essentially on the culture of Nirnroot, some hunting and the fishing.

Rolorad:

The city to rodeur is a soutteraine city, later of sinuous etlonguent galleries through the mountain, Rolôrad is in a huge cave has half immersed by a sout lake - terain. A part of the city is in the cave, but the biggest part take places in the rock, buried in soutterains.
We can notice some buildings such as the royal Palace, buried in the depths of the city, the elevator which dessert all the city, The cathedral and the place(square) of hangings.
Rolôrad is a varied city which shelter homeless persons, until aristocrats by way of the breeders and the storekeepers. In spite of a dirty appearance and muddled, Rolôrad is a powerful and rich city.
Its economy rests(bases) on the breeding, the exploitations agricoles and the manufacturing of weapons. Indeed Rolôrad possesses the best blacksmith of all Ashkalor. It also possesses its own currency(change). The city is subjected has a religion ( The Night-Blood) which defines most of daily movements of the citizens.