"WWF SmackDown! (Exciting Pro Wrestling in Japan) is a professional wrestling video game released on the PlayStation console by THQ and developed by YUKE's Future Media Creators. It is part of the WWF SmackDown! (now WWE SmackDown vs. Raw) series based on the World Wrestling Federation (WWF) professional wrestling promotion. This game was succeeded by WWF SmackDown! 2: Know Your Role.
SmackDown! was the first WWF game on the PlayStation to be published by THQ, taking over for the previous publisher Acclaim."
Source: Wikipedia, "WWF_SmackDown!," available under the CC-BY-SA License.