Mark Sumner

Mark Sumner was a software programmer for many software publishers including Christian, PS Software, Futura, Counterpoint, Challenger, and CSI Design Group. He is credited with programming the following software titles for the TI-99/4A.

Game Credits for Mark Sumner

• 3D Stalkers
• Gravity Master
• Hopper
• Horrors!
• Key Quest
• Octal
• PS Pesteroids
• Space Rescue
• Space Rescue 2
• Spy's Demise with Ken Dibble
• Star Sentinel
• Starprobe 99
• Wallaby