Obryn
Hero
IIRC, ability checks were always a house-rule. They were just really, really common and everyone learned them. I think they may have been in a module?Does Osric include information on ability checks?
I'm using them for my own game, but based on someone's posts here, I have my players roll a set of d6's instead. Usually it's 3d6, but sometimes I call for 2d6 for really easy stuff, and 4d6 or 5d6 for the really tough stuff.
-O