IL2BOS is on sale from May 4th till May 11th (May 12th if you buy in our store).
Updated to version 1.011 with extra transport plane and a new map, and with a 50% discount it's a must buy for simmers!
Check it out on Steam and on our site.
http://il2sturmovik.com/store/
http://store.steampowered.com/app/307960
50% sale on IL2BOS
Source: Steam Community (opens in a new tab)