I explore "Getting started" section, and hope I was read all materials carefully , but I don't found an answer on very simple question:
When we run the Editor, we see |New Level| option, there we have some prefabs like HUD and Crysis-like Weapons as part of game/level. But how can I start building game from scratch? Without any active prefabs, like I do it in engines like Unity3d and etc.?

Because like it was writen in files/CryENGINE_3_Free_FAQ.pdf:


note: I don't mean "Edit Equipments-Pack" option, because even after clear all wepons and etc. I still have many standart Crysis-like FPS prefabs/styles.

How I need to start my work, if I don't want to build anything in Crysys-like style, but need to create little RTS or Quest for example (or Tic-Tac-Toe with PhysX, why not)?
Thanks for yous answers

Update: Look like no one know how to really make GAME, not a MOD.
But I am open CryDev News today and found brilliant example of succesfull "game from scratch"
viewtopic.php?t=77091 . Does it make with Free SDK? if "not" - does it possible to make something similar with free SDK? If so, HOW?
Please share your experiences. Thank in advance

As far as I know that is not possible. You get started with the default assets and if you want to make a totally different game you just have to replace everything and delete what you don't need.