Mack was in Alliance Design for the release of Substance in april of 1991, but was gone from the memberlist by the release of Workfrench in january of 1992. He moved on to Scoopex, before moving on to Melon Dezign.

Voted #6 best graphician in The Charts 1 (febuary 1993).

Following his scene career, Mack worked on a number of games, including Saga: Rage of the Vikings (1998), Les Visiteurs: Le Jeu (1998), Omikron: The Nomad Soul (1999), Inspector Gadget: Advance Mission (2001), Iron Storm (2002), Extreme Ghostbusters: Code Ecto-1 (2002), Act of War: Direct Action (2005), Act of War: High Treason (2006), Virtual Skipper 5: 32nd America's Cup - The Game (2007), PhysX Extreme Unreal Tournament 3 Mod-Pack (2007), Dead Head Fred (2007) and C.O.P.: The Recruit (2009).