Interlock System
The Interlock System is R. Talsorian Games' proprietary role-playing system.
Interlock was a game system by R. Talsorian Games based on a simple ‘die + bonus’ system, using a d10. Mekton II (1987) – the third edition of R. Talsorian's mecha game – revealed for the first time the full-fledged Interlock system. Interlock featured point-based characters with a character background system that had
appeared in Mekton, though in a more complex and comprehensive form called Lifepaths. Cyberpunk 2013 (1988) was R. Talsorian's second Interlock design. Cyberpunk expanded the original Interlock system by introducing a new combat system called "Friday Night Firefight". The second edition of the game, Cyberpunk 2020 (1990), polished up the Interlock system once more, producing what is now known as "Standard Interlock".