In the walkthrough for the Silverfall basic game I've made a great effort to give you the more information and to gather the more quests just to help you, if you get stuck somewhere or you're simply curious about the game play.
Please take that into account, from the Companion-type quests only those ones are available for you that are given by the companions you travel with. For example: you can only get Tanya's first quest if she's with you at the time you are in the Great Cemetery Wastelands.
The description for the quests of Portiz and Alina was the great work of Kriszta (a Hungarian fan), and she was also the one who helped me to build-up the content of the site with her critical but beneficial comments.
I grouped the walkthrough by places for the sake of clear sight. Therefore somewhere the chronology is a bit "upside down". During the game you have to return to a place, sometimes more than twice. So there will be quests in a place in between more time elapse. These ones will be marked and you'll find the prelude there and with a simple mouse click you'll be able to check on it, and then return.
This description is clearly a spoiler for those who love surprises!
You need to complete two quests in this Mine, but you don't get another one here.
You need to complete quests you picked up earlier in this Camp, but you don't get another one here.
Here you don't get any new quest, you just have to fight a way to the Necroraider Laboratory.
Here you don't get any new quest either, you just have to break through the hordes of necroriaders and get to the Zeppelin.
You can find the walkthrough for the extension of this game, Earth Awakening here, or on top amongst the main buttons, or in the Navigation menu.