tag:blogger.com,1999:blog-8038823840472916624.post936044185358824691..comments2021-06-21T02:17:15.480-04:00Comments on The Lands of Ara: d20 vs. 3d6 Attribute ChecksCarter Soleshttp://www.blogger.com/profile/01286436801953647693noreply@blogger.comBlogger18125tag:blogger.com,1999:blog-8038823840472916624.post-23705587544210954182011-08-24T13:32:00.142-04:002011-08-24T13:32:00.142-04:00Thanks for kicking this off, Carter. The comments...Thanks for kicking this off, Carter. The comments have been most helpful to my pondering, so thanks to everyone.Theodric the Obscurehttps://www.blogger.com/profile/18201793290118146978noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-57498517137474972412011-08-23T20:25:59.327-04:002011-08-23T20:25:59.327-04:00Two points:
1. The variable d6 idea was used in T...Two points:<br /><br />1. The variable d6 idea was used in The Fantasy Trip.<br />2. If you'd like a curve instead of linear so idea are 2d10 or 4d6-4 (resulting in 0-20) although the math on the later get ugly. You might find 0-5 dice. Another possibility is 4d5 (http://www.gamestation.net/s.nl/it.A/id.4380/.f)Pulp Herbhttps://www.blogger.com/profile/02486803457210325703noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-13924800477041853812011-08-22T02:44:01.836-04:002011-08-22T02:44:01.836-04:00I agree with bombshelter13: don't do this unle...I agree with bombshelter13: don't do this unless attributes should be super important. Another way to think of it: if you want the bell curve to match expected results, then you can't roll attributes using 3d6 and test them using 3d6â€”one of the two needs to haves a linear distribution like a d20.Alex Schroederhttps://www.blogger.com/profile/17104864340940538702noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-23590451775743675022011-08-21T21:30:54.181-04:002011-08-21T21:30:54.181-04:00Carter, the Secret Fire rpg hat just came out uses...Carter, the Secret Fire rpg hat just came out uses the variable d6 system and roll under your statfor success, based on task difficulty. I find it very interesting and it gives greater meaning between an 11 or a 12 in stat for example. It also makes 3d6 straight characters more viable and interesting. It also opens up an avenue to try moves (whether combat or action task) of increased difficulty by voluntarily adding more d6s to your attempt, for example a cleave or a trick bow shot, or something like swinging down from a chandelier to attack. It's just different than adding or subtracting modifiers to a d20 roll.Theohttps://www.blogger.com/profile/15719958535312673509noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-33890553199265519442011-08-21T19:53:35.198-04:002011-08-21T19:53:35.198-04:00Wow, thanks for the further comments, all very enl...Wow, thanks for the further comments, all very enlightening. Jim, I look forward to hearing more about your 3d6, 4d6, 4d6 system if you ever hone it down.Carter Soleshttps://www.blogger.com/profile/01286436801953647693noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-37386039608242722842011-08-21T14:18:13.174-04:002011-08-21T14:18:13.174-04:00"And remember, the guy with 18 can't fail..."And remember, the guy with 18 can't fail at all."<br /><br />Exactly. That's why d20 is really used. A 20 is an auto failure. Just reverse the numbers. :)Anthony N. Emmelhttps://www.blogger.com/profile/14017952532295866111noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-34551821348438367052011-08-21T11:50:04.981-04:002011-08-21T11:50:04.981-04:00This is the short version: 3d6 attribute checks ma...This is the short version: 3d6 attribute checks make high attribute scores even better and low ones even worse. <br /><br />It also has a range issue: if you're trying to equal to or under your ability score, then people with 18 never fail. If you're trying to roll under, people with 3 never succeed.<br /><br />Assuming you're trying to equal to or under your score, and using 17 as the high stat to avoid the range issue:<br /><br />With d20, a terrible person (stat 3) still succeeds 15% of the time (3 time in 20), an average persion (rounded to 11) succeeds 55% of the time (11 times in 20) and a great person (stat 17) succeeds 85% of the time (17 times in 20).<br /><br />With 3d6, a terrible persion (stat 3 only succeeds 0.04% of the time (1 time in 216), an average person succeeds 62.5% of the time (135 times in 216) and a great person (stat 17) succeeds about 99.53% of the time (215 times in 216). <br /><br />With 3d6, your stat needs to be at least 7 before you have a 10% chance of success, and if needs to be under 14 before you have a 10% chance of failure.<br /><br />And remember, the guy with 18 can't fail at all.<br /><br />So, basically: don't do this unless you want to make attributes extremely important. Characters with stats of 14 and up will become gods among men, night immune to failure, and those characters cursed with a stat of 7 or below can be immediately consigned to lives of dismal failure.bombshelter13https://www.blogger.com/profile/04665895584362412179noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-65752537650542230222011-08-21T11:29:14.952-04:002011-08-21T11:29:14.952-04:00I find this site very helpful
http://topps.diku.dk...I find this site very helpful<br />http://topps.diku.dk/torbenm/troll.msp?what=rollThe Jovial Priesthttps://www.blogger.com/profile/00160018433070823408noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-23490114054165939092011-08-21T11:23:23.746-04:002011-08-21T11:23:23.746-04:00How about:
2d6 for difficult tasks if you have th...How about:<br /><br />2d6 for difficult tasks if you have the particularly skilled/experienced in doing that kinda thing.<br /><br />3d6 for average difficulty<br /><br />4d6 for really hardAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-63075688922790298812011-08-21T10:44:36.062-04:002011-08-21T10:44:36.062-04:00As an aside, I've been toying with 4d6, 5d6 an...As an aside, I've been toying with 4d6, 5d6 and 6d6 rolls under attributes to simulate more difficult obstacles. I haven't quite codified it yet, but I do think that the 3d6 idea is better than d20 any day.Jimhttps://www.blogger.com/profile/18158916950442942918noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-7925684897649075792011-08-21T10:00:36.802-04:002011-08-21T10:00:36.802-04:00THANKS for the help, mathematicians! I now see ho...THANKS for the help, mathematicians! I now see how simple it really is, but my brain usually needs assistance to overcome mathematical obstacles, no matter how simple. Thanks also for the links, Kelvin and Sean.Carter Soleshttps://www.blogger.com/profile/01286436801953647693noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-73703635870986128002011-08-21T09:08:57.635-04:002011-08-21T09:08:57.635-04:00No, your explanation is a good one, whereas I took...No, your explanation is a good one, whereas I took the easy route of providing a link to a computer brain!thekelvingreenhttps://www.blogger.com/profile/01928260185408072124noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-47202535868661175352011-08-21T08:57:03.655-04:002011-08-21T08:57:03.655-04:00This comment has been removed by the author.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-18823814532377283032011-08-21T08:53:44.436-04:002011-08-21T08:53:44.436-04:00Gazumped by Kelvin and Sean. That'll teach me...Gazumped by Kelvin and Sean. That'll teach me to write a long reply and check my math on the calculator!Dennis Laffeyhttps://www.blogger.com/profile/03053699552003336733noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-26745164442046119252011-08-21T08:52:44.534-04:002011-08-21T08:52:44.534-04:00No, that's the chance to roll that number. So...No, that's the chance to roll that number. So you'd have a less than 1% chance to roll an 18 on any given 3d6 throw. <br /><br />If you're doing a 3d6 roll under an ability score thing, an 18 would technically never fail, although most folks using such a rule would likely institute an "18 always fails thing." <br /><br />There are 216 possible combinations of numbers (permutations) for a roll of 3d6. Only one of those gives an 18 (6,6,6) so it's actually slightly less than 1/2 a percent chance to roll an 18, or a 3 (1,1,1). There are lots of combinations that result in a 10 or 11, so the percentages of rolling one of them are much higher. <br /><br />So, for example, there are 215 combinations that result in a 17 or lower, so you'd have about a 99.5% chance of success with a score of 17. <br /><br />I'm not really a math geek, I was just good at it in school, so someone else will likely explain it better than me. But hopefully this will help.Dennis Laffeyhttps://www.blogger.com/profile/03053699552003336733noreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-61058488571205891582011-08-21T08:47:24.045-04:002011-08-21T08:47:24.045-04:00Gazumped by Kelvin ! :)Gazumped by Kelvin ! :)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-89782808544267663452011-08-21T08:45:10.028-04:002011-08-21T08:45:10.028-04:00That chart is the chance of just rolling equal to ...That chart is the chance of just rolling equal to that number.<br /><br />On 3d6, the most rolled score is 10-11, as the average is 10.5, try this site out:<br /><br />http://anydice.com/program/9faAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-8038823840472916624.post-55548014444395158472011-08-21T08:44:38.653-04:002011-08-21T08:44:38.653-04:00Let the computers do the work for you!
Gygax'...Let the computers <a href="http://www.ogmiosproject.org/articles/3d6results.html" rel="nofollow">do the work</a> for you!<br /><br />Gygax's table tells you the rough percentage chance of rolling the exact number on 3d6, but what you really want to be doing is adding all the lower numbers in too. A strength 11 fighter is is going to have a 3d6 success rate of about 63%.thekelvingreenhttps://www.blogger.com/profile/01928260185408072124noreply@blogger.com