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<blockquote data-quote="Kinematics" data-source="post: 8919176" data-attributes="member: 6932123">30 still makes sense as &quot;nearly impossible&quot;, as long as expertise is excluded. A +5 from a stat, plus a +5 from proficiency bonus (level 13+) only succeeds on a nat 20. That definitely strikes me as &quot;nearly impossible&quot;.Something &quot;easy&quot;, I'd put as something that an average commoner (or unskilled adventurer for a skill in a low stat) should be able to manage at least a good 75% of the time. With +0 from attributes and +2 from proficiency, DC 5 gives a 90% success rate. DC 8 would be a 75% success rate.DC 8 works for the 80% success rate if you gauge it relative to a beginning adventurer with a 12 in a stat. Then increment by 20% per tier instead of 25% (I also think the +5 increment per difficulty level is too large). 60% at DC 12 (medium), 40% at DC 16 (hard), 20% at DC 20 (very hard), and 0% at DC 24.For a primary stat (16) and +2 proficiency, you get a +5. You also get a +5 for a secondary stat (14) at level 5, with a +3 proficiency.&nbsp; At that, the above DCs become: DC 8 (90%), DC 12 (70%), DC 16 (50%), DC 20 (30%), and DC 24 (10%).In general, medium would be &gt;50% chance of success, while hard+ is &lt;50% chance of success, for those early levels.&nbsp; At higher levels you'd start to have better than even odds of completing a hard task, which is entirely reasonable.A primary stat of 20 at level 10 (+4 prof) gives you +9 total for a proficient skill. That makes easy tasks guaranteed, and medium tasks 90% likely to succeed.&nbsp; At level 17, with +6 prof, medium tasks are guaranteed, and hard tasks can be done 80% of the time.For a primary attribute and a proficient skill, this progression does not seem unreasonable. At the same time, unproficient, low-attribute skills are still reasonably doable for easy-medium stuff. You don't have to avoid them like the plague.So, charting it out :<table style='width: 100%'><tr><th>Task Difficulty</th><th>DC</th></tr><tr><td>Easy</td><td>8</td></tr><tr><td>Medium</td><td>12</td></tr><tr><td>Hard</td><td>16</td></tr><tr><td>Very Hard</td><td>20</td></tr><tr><td>Herculean</td><td>24</td></tr><tr><td>Nearly Impossible</td><td>30</td></tr></table></blockquote>

[QUOTE="Kinematics, post: 8919176, member: 6932123"] 30 still makes sense as "nearly impossible", as long as expertise is excluded. A +5 from a stat, plus a +5 from proficiency bonus (level 13+) only succeeds on a nat 20. That definitely strikes me as "nearly impossible". Something "easy", I'd put as something that an average commoner (or unskilled adventurer for a skill in a low stat) should be able to manage at least a good 75% of the time. With +0 from attributes and +2 from proficiency, DC 5 gives a 90% success rate. DC 8 would be a 75% success rate. DC 8 works for the 80% success rate if you gauge it relative to a beginning adventurer with a 12 in a stat. Then increment by 20% per tier instead of 25% (I also think the +5 increment per difficulty level is too large). 60% at DC 12 (medium), 40% at DC 16 (hard), 20% at DC 20 (very hard), and 0% at DC 24. For a primary stat (16) and +2 proficiency, you get a +5. You also get a +5 for a secondary stat (14) at level 5, with a +3 proficiency. At that, the above DCs become: DC 8 (90%), DC 12 (70%), DC 16 (50%), DC 20 (30%), and DC 24 (10%). In general, medium would be >50% chance of success, while hard+ is <50% chance of success, for those early levels. At higher levels you'd start to have better than even odds of completing a hard task, which is entirely reasonable. A primary stat of 20 at level 10 (+4 prof) gives you +9 total for a proficient skill. That makes easy tasks guaranteed, and medium tasks 90% likely to succeed. At level 17, with +6 prof, medium tasks are guaranteed, and hard tasks can be done 80% of the time. For a primary attribute and a proficient skill, this progression does not seem unreasonable. At the same time, unproficient, low-attribute skills are still reasonably doable for easy-medium stuff. You don't have to avoid them like the plague. So, charting it out : [TABLE] [TR] [TH]Task Difficulty[/TH] [TH]DC[/TH] [/TR] [TR] [TD]Easy[/TD] [TD]8[/TD] [/TR] [TR] [TD]Medium[/TD] [TD]12[/TD] [/TR] [TR] [TD]Hard[/TD] [TD]16[/TD] [/TR] [TR] [TD]Very Hard[/TD] [TD]20[/TD] [/TR] [TR] [TD]Herculean[/TD] [TD]24[/TD] [/TR] [TR] [TD]Nearly Impossible[/TD] [TD]30[/TD] [/TR] [/TABLE] [/QUOTE]

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