Many of Schleiner's works are examples of video game art. "Velvet-Strike", completed in 2002, is a modification to the military simulation game Counter-Strike. This work was created with Brody Condon and Joan Leandre. They invited other gamers to create patches, known as sprays, visual cyber graffiti that users would download, install, and use by shooting the sprays instead of bullets and the protest would then appear in the game. "Velvet-Strike" was featured in the 2004 Whitney Biennial. Another example of video game art, "Operation Urban Terrain (OUT): A Live Action Wireless Gaming Urban Intervention" mixes alternate reality gaming with public performance. Using a portable internet connection, a projector and a team of technicians, the artist critiqued the Military Operations in Urban Territory (MOUT) military policies by playing and projecting America's Army at several places within New York City during the ongoing Republican National Convention of 2004.