
Lvl 12 Procrastinator |

I'm running a game where the party is caught up in a city descending into total anarchy. Roving gangs of looters, spontaneous mob formation, etc. I've put together some custom rules for formation of the mobs, how quickly they grow, etc., but I could use some advice for answering some general questions:
- What should a PC's movement rate through a mob be? Treat is as difficult terrain, or something more complicated? If the former, should a monk really be able to disregard it?
- In the case of the mob being hostile and openly attacking members of the party, I'm inclined to treat the mob as some sort of swarm (else these lvl 8+ characters could just walk through the crowd and ignore it like it wasn't even attacking them...I want it to be a very desirable thing to be as far from the riots as possible).
- Perception: with all that yelling and screaming and jostling going on, I'm inclined to think perception is reduced...but by how much?
Any other thoughts/ideas/suggestions welcomed.

Lvl 12 Procrastinator |

A mob that is not explicately hostile to the party should be difficult terrain. A mob that is hostile to the party ought to use the swarm rules.
The perception to notice a mob? Very very low. -10 maybe?
I was thinking about the perception to notice something small going on within a mob. Like, someone attempting to pick your pocket during all the yelling and jostling going on.

Epic Meepo RPG Superstar 2009 Top 16, 2012 Top 32 |
There are rules for (non-attacking) crowds in the Core Rules.
You can find them by scrolling down to "City Streets" on this page.