Quake: The upcoming prequel to 1999 Dreamcast game Slave Zero just got its own prequel, and it's a free Quake mod

Slave Zero X: Episode Enyo is a weird tie-in for a weird game: a free prequel Quake mod for the upcoming 2D character action game Slave Zero X, itself a prequel to the 1999 PC/Dreamcast mech game, Slave Zero. That conte…