I'm facing problems as well with the same scenario. I'm playing as Vespasian.
I had several crashes so far. The last ended my gameplay with following message:
Sorry! A crtical error has occured. The application will be terminated.
I´ve attached my LOG-File.
The attachment Logs.zip is no longer available
I've bought my game via MATRIX-Games, just for information.
Here is as well a report from DX-Diag:
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.120830-0333)
Language: German (Regional Setting: German)
System Manufacturer: System manufacturer
System Model: System Product Name
BIOS: BIOS Date: 04/10/12 17:55:22 Ver: 11.04
Processor: Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz (12 CPUs), ~3.2GHz
Memory: 16384MB RAM
Available OS Memory: 16362MB RAM
Page File: 3630MB used, 29091MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode
------------
DxDiag Notes
------------
Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Input Tab: No problems found.
--------------------
DirectX Debug Levels
--------------------
Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)
---------------
Display Devices
---------------
Card name: NVIDIA GeForce GTX 680
Manufacturer: NVIDIA
Chip type: GeForce GTX 680
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_1180&SUBSYS_00000000&REV_A1
Display Memory: 4042 MB
Dedicated Memory: 1994 MB
Shared Memory: 2047 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor Name: PnP-Monitor (Standard)
Monitor Model: EV2335W
Monitor Id: ENC2294
Native Mode: 1920 x 1080(p) (60.000Hz)
Output Type: DVI
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 9.18.0013.1090 (English)
Driver Version: 9.18.13.1090
DDI Version: 11
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 12/29/2012 11:34:47, 18054312 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
Device Identifier: {D7B71E3E-52C0-11CF-F267-0D201CC2C435}
Vendor ID: 0x10DE
Device ID: 0x1180
SubSys ID: 0x00000000
Revision ID: 0x00A1
Driver Strong Name: oem85.inf:NVIDIA_SetA_Devices.NTamd64.6.1:Section062:9.18.13.109:p ci\ven_10de&dev_1180
Rank Of Driver: 00E00003
Video Accel: ModeMPEG2_A ModeMPEG2_C ModeVC1_C ModeWMV9_C
/Slow_Target