Exactly.With a little reworking of the numbers, you could potentially expand this to combat as well. Attack roll = 1d20 + (ability score - 10) vs. target's Dex score (and maybe + shield). Have to figure out how armor worked in this system (maybe it works as DR instead of adding to your AC or something).
That bakes in the rather poor idea (given to us by point-buy and array systems; may they leave this hall and never return) that the lowest you can go is -1. The range for stats is supposed to be 3-18, thus -4 to +4.Further, I like the idea of doing away with the actual ability score, and letting the ability just be the bonus.
Abilities would range from -1 to +4 for a 6 point spread allowing people to roll a d6 for ability scores if they are so inclined.
No, 3e had to move away from roll-under because it was way too easy in 3e to have one or more stats end up in the mid-20's or higher, making roll-under on a d20 utterly meaningless.Sometimes it feels like the 3e skill system was more of an answer to classic 'class-based-vs-skill-based' arguments of the 90's rather than a solution to a problem that needed solving.
No, 3e had to move away from roll-under because it was way too easy in 3e to have one or more stats end up in the mid-20's or higher, making roll-under on a d20 utterly meaningless.
5e, with its hard stat cap of 20, can easily go to a roll-under system; the only thing I'd do would be that a roll of 20 always fails even if your stat is 20.
Lanefan
The other aspect of roll-under systems you see in games like GURPS but not so much in 2E is modifiers to the score for the difficulty of the task. So, like, roll under your strength to kick down the door but roll under your Strength - 5 to kick down the steel-reinforced door. Equivalent in d20 parlance to setting the DC higher than 10. And makes scores higher than 20 (or in GURPS' case, 18) meaningful.No, 3e had to move away from roll-under because it was way too easy in 3e to have one or more stats end up in the mid-20's or higher, making roll-under on a d20 utterly meaningless.
Exactly, which is why roll-under worked there. It's 3e that wrecked it, as I noted before.Um, increasing stats was pretty difficult in 2e, unless your DM was just handing out tomes amd manuals like candy. Or wishes, i guess...
We do this sort of thing all the time. For a particularly difficult Dex check, for example, you might need to roll under half your Dex. And true, this would make a roll-under meaningful if the stat you're rolling against is in the mid-20's...but it's uncommon enough that it doesn't save the system.The other aspect of roll-under systems you see in games like GURPS but not so much in 2E is modifiers to the score for the difficulty of the task. So, like, roll under your strength to kick down the door but roll under your Strength - 5 to kick down the steel-reinforced door. Equivalent in d20 parlance to setting the DC higher than 10. And makes scores higher than 20 (or in GURPS' case, 18) meaningful.