Onlive has put Darksiders II - Limited Edition (which includes the original game and Argul's Tomb add-on pack which should become available within one month after launch) - on preorder for £34.99. The offer ends on the 28th of June.
The offer excludes shipping, handling and tax for the OnLive Game System. The bundle includes the MicroConsole TV adapter, a wireless controller with media controls, a rechargeable controller battery, power adaptor, HDMI cable, Ethernet cable, USB cable and two AA batteries.
You will need a HDTV with a HDMI out as well as a stable 3Mbps or higher wired broadband Internet connection. Darksiders II costs roughly the same on gaming consoles and £25 for the PC edition. Source : Online