Because one thing that I have learned in my many years of working and in teaching college in and for the video game industry, you have to have a significant amount of time to do post production. This includes concept art, story, dialog...etc.
http://dovahzaan.com/ (Dragon Shout). Is a game mod by http://theatomiccafe.net/ that is currently in pre-production.
The ATOMIC Cafe is a team of 30 (give or take) video game professionals that include artists, designers, sound engineers, writers and professional voice actors that are dedicated to making Great Mods for Great games.
We have people on the team that have worked and or are working, in the video game industry for such companies as Blizzard Entertainment, Double Helix Games, id Software, inXile Entertainment, LucasArts, EA Games, Activision. BUT, we are also dedicated Elder Scrolls fans that are combining our talents and experience in the video game industry to make a major add-on quest to TESV: SKYRIM based on the Lore of The Elder Scrolls.
You can see our Teaser Trailer for our Mod on YouTube at the link below.
http://www.youtube.com/user/Dovahzaan