The game you're referring to seems to be a part of the Might & Magic Heroes VI universe, featuring an expansion or DLC focusing on the character Sandro, a legendary villain and Lich pursuing his own ambitions with strategic cunning. Here are the system requirements for this expansion:

Minimum Requirements:

Operating System: Windows XP, Windows Vista, Windows 7 (32/64 bit)

Processor: Intel Pentium Core 2 Duo E4400 @ 2.0 GHz

Memory: 1 GB RAM

Graphics: 512 MB DirectX 9.0c compatible

DirectX: Version 9.0c

Storage: 8 GB available space

Sound: DirectX 9.0c compatible

Recommended Requirements:

Operating System: Windows XP, Windows Vista, Windows 7 (32/64 bit)

Processor: Intel Pentium Core 2 Duo E6400 @ 2.0 GHz

Memory: 2 GB RAM

Graphics: 1 GB DirectX 9.0c compatible

DirectX: Version 9.0c

Storage: 8 GB available space

Sound: DirectX 9.0c compatible

Make sure your computer meets or exceeds these specifications to fully enjoy the new adventure and features introduced in this expansion, including the extended storyline, new artifacts, bonuses, and the unique blend of turn-based strategy and RPG gameplay characteristic of the Might & Magic Heroes series.