ARPG?

Souls series (Demon's Souls, Dark Souls 1&2) and Dragon's Dogma.

CRPG?

Dragon Age: Origins.
Neverwinter Nights.
Fallout 1&2.
Planescape.
Hell just include every game made on the Infinity engine.

Let's Play Divine Divinity - The Damned One's Tale - Chapter II.