1. The first is a later version of the second, if I am informed correctly. Do not get both.
2. Don't know. Gold usually means a developement stage close to release. but these games are old. Note that I call them games. not simulations.
3. Because I would not think that somebody rates them as a simulation, or people are not interested in it, or both.
4. No need to speak in plural: currently there is only SBP around, modern era. They plan to release a historical tank sim which visually looks good, if the physics and realism part, playability and technical shape is up to that remains top be seen.
On SBP, which comes extremely highly recommended, there is a stickied screenshot thread and a ressouces thread at top of the thread list, there you can find links to my and other reviews, material, homepage, homeforum, etc etc. On the historical sim, there is a thread that features some screenshot from developement.
And welcome, btw.
