Melty Blood
In December 2002, Type-Moon, in association with French-Bread (known as Watanabe Seisakujo prior to 2003), released their first fighting game, "Melty Blood", a PC-based doujin game based on the "Tsukihime" universe, which was very popular and was followed soon after by an expansion, "Melty Blood Re-ACT", released in May 2004, to which a patch update, "Melty Blood Re-ACT Final Tuned", was released as a free download over the Internet. "Melty Blood" is widely considered among the best doujin 2D fighting games ever made, and has been released as an arcade port, "Melty Blood: Act Cadenza", in March 2005, and was released on the PS2 platform in August 2006.