The human brain and “roll under” systems

I’m a big fan of the voodoo and beliefs the human brain can attach to dice. From switching dice because certain ones are “rolling badly”, to feeling like you’re “due” for a good roll, to thinking you can downright force the dice to roll a certain number, to the rituals around blowing on dice before rolling or shaking them a certain way. It’s amazing what we can trick ourselves into.

Anyway recently I’ve been playing Warhammer Fantasy RPG. Just a few sessions in as a Zealot. It’s been pretty fun. The melee combat is enjoyable with the different stances you can enter and how you can split your attacks. A few of the other players don’t really get too in-depth besides “I full attack”, so that’s too bad. The system unfortunately uses D10s. As you know, me and hundreds of thousands of other people don’t like the D10. But I digress.

The point I wanted to make is the system is Roll Under. Which means if you have a Weapon Skill of 45 you need to roll 45 or under on percentile D100 dice. Games Workshop always seems to be torn in this regard as their other approach in Warhammer 40,000 and similar is to have a Ballistic Skill of say 4, and to figure out what you need to hit you subtract your BS from 7, so 4 BS = 3+ on a D6.

So the other day when I was playing we had many missed attacks. But I noticed something funny: people feel okay failing a check when they still roll high. There’s still something so natural about seeing a roll of 98 out of 100 and feeling good about it. “Sure I missed, but damn did you see that roll?!”. Certainly makes for an interesting look at human nature and our long standing relationship with dice.

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