Just Imagining A La Mod For EM5

I loved Emergency 4 and played it 3 times over and I'd just like to play more but this is now unbuyable on Steam and found no reason online... so why is that? It doesn't even show up in search results on Steam... ? I'm surprised I even found this forum.

Ist Emergency 20 neuer als Emergency 5 Deluxe?

Is it removed from store?

Hi guys, I have the disc of this game, the platinum version I think it was but I cant play it on steam. anybody has a key? I can trade, or pay via paypal.