OnLive is aiming to make its flat-rate, "all-you-can-play" PlayPack plan more attractive -- this time down the barrel of a cel-shaded rifle. The cloud gaming company announced today that Gearbox's Borderlands is joining the $10 per month selection of titles on tap for unlimited play.

The hybrid FPS slash RPG joins a library of about 50 games available to plan subscribers, including the likes of Just Cause 2 and Tomb Raider: Underworld. Along with news of Borderlands joining their ranks, OnLive revealed that PlayPack games -- some of which are not offered for sale -- can all be demoed for free as of today.

Just recently, the company extended its program offering free MicroConsole hardware to anyone who pre-orders Duke Nukem Forever -- another 2K Games title -- via its game streaming service.