It originally was for PnP but it will likely only be used for digital now. We had one iteration where the combat was really realistic, but it was too calculation intensive for PnP. That'd be perfect for computer RPG though. We replaced it with a simplified combat system for PnP.
Mine was similar to GURPS in some ways though still had a bunch of attributes. The magic system though is second to none, though the coolest aspects of the magic system can't really be computerized they require a creative GM to take full advantage of them.
The Age of Decadence http://store.steampowered.com/app/230070/ was a pretty interesting indie rpg i played recently. It has a great lore/world in an age where our civiliation is long forgotten and people are back to a Roman Empire Age when it comes to technology. You have many, many different ways to complete the game also in non-violent ways.
BUT it also had the problem that playing the non-violent way didnt "feel good" because you either had enough skill to do something like talking your way out of a situation or you dont have enough skill. Dice-Rolls wouldnt really solve the issue since you can save&load until you succeed.
Goes to show you need a Game Master to have none combat skills and magic implemented well in a game ;).