Emile comments on Bayesian RPG system? - Less Wrong

12 Post author: DataPacRat 08 February 2012 11:53AM

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Comment author: Emile 08 February 2012 01:31:34PM 2 points [-]

One simple way of keeping that playable:

Each skill is an integer that is at zero by default, and can go up or down depending of circumstances (items, skills, roleplay ..)

  • For a modified skill of zero, roll a (six-sided) die, succeed on a 4+

  • For a positive modified skill of N, roll N extra die (N + 1 total), succeed if one of them is 4+

  • For a negative modified skill of -N, roll N extra die (N + 1 total), succeed if all of them are 4+

Comment author: Cthulhoo 08 February 2012 02:52:51PM 4 points [-]

The World of Darkness game system has a similar spirit. Basically your abilities determine your dice pool, e.g. Intelligence = 3 + Academics = 2 gives 5 dice to try to understand a technical book. You then have to roll the dice and obtain at least one 8+ on 5 d10. Bonus/malus apply on the dice pool, e.g a noisy room is -1 die and access to google is +1 die. Of course incremental bonuses are less relevant the bigger the dice pool is.