A collection of mini-games

 Up until 3rd edition, every edition of Dungeons & Dragons has been a collection of mini-games. Combat is d20 rolls. Interaction (reaction rolls, morale, recruiting hirelings) and turn undead are 2d6. Lots of exploration abilities are x/d6 (or x/d10). Thief skills are d%. Magic is Vancian. The adventure day (wilderness), the exploration turn (dungeons), and the combat round are all procedural mini-games. If there are rules for strongholds, followers, magic item creation for high level play, they probably have their own bespoke mechanics. 

These days, most OSR games that come out that aren't close clones of an older edition tend to strive for the unified mechanic idea. Especially the "rules lite" games like Black Hack, PBTA, etc. 

I'm taking a game with a unified mechanic (d20 Modern) and trying to backwards engineer it into a game with a collection of mini-games. And it's interesting where I'm finding the lines to draw. 

I want Missions & Mayhem to be simple and easy to run and play. So far, I seem to be hitting that goal. A week ago, we did a play test of a mystery (no combat, although there was potential for it depending on how it might have played out). Before we started, a few players needed to bump their PCs up to level 2. Denis added a second level of Strong Hero to his PC, so that was easy. Justin decided to add a level of Charismatic Hero to his Dedicated Hero PC, but that turned out to be really simple and easy as well! 

Playing the adventure, things went smoothly for the most part, but I'd realized something I'd added in the edit was overly complicated. So this week, I'm taking it out. This has me streamlining how to run all the general proficiencies, and it's become a unified mechanic for those tasks (combat is still run differently, as are a few other bits and pieces). 

The bit I added then took out were "Basic Tasks" that any PC could do. They were % based, each starting at 20% but modified by ability score modifiers and character class. I realized, though that having all of the General Proficiency areas start at a Basic Level (roll 2d4), then have them progress to Skilled (roll 2d6) and Advanced (roll 2d8) would work better than having % basic tasks, some proficiencies at 2d6, others at x/d6 chances. 

Of course, that means I had to revise the General Proficiency list, and also now I'm revising the mechanics to how to run/adjudicate these actions. It's a fairly big overhaul, since I need to be on the lookout for areas that might be influenced by the new proficiency areas I added. But in the end, the streamlining will hopefully make the game even easier to explain and run. 

And this is just the base "tool box" rules. Once I add campaign settings (modern-day monster hunters, cyberpunk, zombie (or regular) apocalypse, X-Files/Stranger Things style aliens/dimensions weirdness, etc.), there will be more mini-games added to cover certain areas. So it will get worse. But hopefully, having familiar old-school D&D combat, and these simple 2dX general proficiency rules as the base, it will be easy to graft on other systems as needed.