Steam Error when starting game

[BackfirePL]

Hi Guys, I'm trying to back to CivIV with New Dawn afer... long time. But have the error (0000065434) when starting game from launcher . Maybe it is something generic, but for true - I'm a newbie who don't know anything and probably can't resolve it myself. Any ideas?

 

[Mr Smith]

You can switch to "beta">unsupported original release, it's not reliant on Steam.

 

[BackfirePL]

Thx! It's working now