Genso Suiko Gaiden Vol. 2: Crystal Valley no Kettou English translation
幻想水滸外伝Vol.2 クリスタルバレーの決闘 · Gensou Suiko Gaiden Vol. 2 · Suikogaiden Vol. 2: Duel at Crystal Valley
Raw Le Klueze's English patch for the second Suikogaiden volume, which continues Nash's story alongside the events of Suikoden II.
The game
The Suikogaiden volumes are text adventures rather than RPGs: you follow Nash Latkje through illustrated scenes and make choices that change how events unfold. Volume 2 picks up after Harmonia no Kenshi and ties into the story of Suikoden II.
What's translated
Raw Le Klueze translated the game into English. The patch was first released in September 2013, and version 1.1 followed in October.
Playing it
Apply the patch to your own copy of the Japanese disc following the readme. The patch's page on romhacking.net has the download and details. The first volume has its own English patch as well.
The screenshots show the original Japanese release.

