Starkiller's Lightsabers from Star Wars The Force Unleashed II.
Star Wars and related items are (c) Lucasfilms LTD.
Lightsaber design are (c) LucasArts and based on a combination of posters and replicas I have seen.
After looking at the examples I was surprised that they used the shroud of Ven Zallow and the pommel of Darth Malgus in the same saber.
Updated version -> [link]