Jun 08, 2016 Gabriel Knight: Sins of the Fathers - Day 2 Walkthrough - 20th Anniversary Edition (Mac). Gabriel Knight: Sins of the Fathers - Day 1 Walkthrough - 20th Anniversary Edition (Mac). Jun 08, 2016 Gabriel Knight: Sins of the Fathers - Day 2 Walkthrough - 20th Anniversary Edition (Mac). Gabriel Knight: Sins of the Fathers - Day 1 Walkthrough - 20th Anniversary Edition (Mac).