On the video: Gameplay: Diablo I, II & III

 

Diablo I from Blizzard Entertainment
On the picture: Diablo I from Blizzard Entertainment

Diablo II from Blizzard Entertainment
On the picture: Diablo II from Blizzard Entertainment

Diablo III from Blizzard Entertainment
On the picture: Diablo III from Blizzard Entertainment



On the video: Diablo II: Rogue Encampment OST

 

Diablo II: Rogue Encampment
On the picture: Diablo II: Rogue Encampment (Click image for full size)

Look at the Diablo II info on Wikipedia:
Diablo II on Wikipedia