Dec 15, 2016, 6:59 PM

My opinion is that House Rules shouldn't be used unless they are covering some mechanics not explored by the original system. I generally prefer modular RP systems, which allow GMs to choose which rules they wanna play, depending on the level of realism, setting or just personal preference, like GURPS and Savage Worlds.

However, when it comes to MU*s, it's sometimes necessary to do some adaptations, some RP systems will work better for it (in my experience, WoD seems like a good example, though XP becomes a problem after a while), some will need tweaks or a complete overhaul. I also believe that if you design a HR, you should constantly run tests and hear the experience of your players for constant improvement.