Half-Life: The Volcano it's basically a HL1 MOD made in Rebirth engine by Sys0p. This alpha version contains 9 maps with custom textures, models, sounds and has a great ambience (in our opinion).
This is Half-Life The Volcano (Alpha Version) Made by Burner and sToP! (2012-2013)
The first version of this Half-Life mod. This alpha version contains: