single-issue promotional comic by Top Cow Productions was released in October 1999 to promote the release of Soul Reaver, starring the vampire Raziel and serving as a prequel to the game's events. Top Cow collaborated with Crystal Dynamics to produce a second comic in early 2004, recapitulating the series' backstory, to coincide with the release of Defiance. Both Kain and Raziel also feature as playable characters in downloadable content for 2010's Lara Croft and the Guardian of Light. Reception By 2007, the Legacy of Kain series had collectively sold over 3.5 million copies, but its commercial success has varied with each game. Blood Omen surpassed Crystal Dynamics' expectations, with reported sales figures ranging from 320,082 units to 2 million copies, whereas Soul Reaver sold over 1.5 million copies, and was included on Sony's "Greatest Hits" list. Soul Reaver 2 and Blood Omen 2 also performed well, selling in excess of 500,000 copies each and becoming Greatest Hits titles. Defiance sold between 500,000 and 1 million units, but failed to live up to Eidos's sales targets.Legacy of Kain has been cited as one of the most popular video game intellectual properties associated with vampires. IGN's Douglass C. Perry regarded the series as "a strangely attractive, yet equally obscure one that [had him] torn between loving and hating it". GameSpot's Greg Kasavin was critical of Blood Omen 2, but praised the Soul Reaver games as "great" for their "innovation and surprising drama", voice acting and technical feats. Matt Clemens of Computer and Video Games said that the series had engaging narrative, impressive cinematic sequences and fluid combat, calling Soul Reaver an "absolute classic". The Houston Press described Legacy of Kains voice cast as "the greatest unrecognized brilliance in video game acting", and compared the dialogue of the series to plays by William Shakespeare. Mikel Reparaz of GamesRadar said that "known for nuanced storytelling, unconventional protagonists, amazing boss fights and rich Shakespearean baritones, the series raised the bar for writing and acting in games". GameSpy's Chuck Osborn complimented the games' storyline as "deep", but described their mythology as convoluted. Individually, each title has generally been received well by critics. Metacritic, a video game review aggregator website, determined that the PlayStation version of Soul Reaver received a "critical acclaim" score of 91/100, Soul Reaver 2 received "generally favorable" scores of 80/100 and 77/100 for PlayStation 2 and Microsoft Windows, the Xbox version of Blood