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2D10 as a substitute for D20?

Started by Tasty_Wind, October 22, 2022, 05:04:28 PM

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RNGm

#15
January 16, 2024, 08:27:55 PM
Quote from: squirewaldo on January 15, 2024, 01:59:15 PM
I have converted a number of my home brew games that used to use the OGL to 2d10 as a replacement for 1d20. I like the fact that 2d10 creates a bell curve of results. But you have to make adjustments, but not big ones.

For critical hits and fails I have made them 19 & 20 for critical hits, and 2 & 3 for critical fails. There is a 3% chance of rolling a critical hit or fail with this arrangement so it makes it even less likely than with a 1d20 (5%). I made the consequences of a critical hit or miss more dramatic.

Also, armor makes a huge difference. A high level (N)PC with good armor might be untouchable by anyone other than another high level (N)PC with good armor. If you want to make a scenario challenging you must take this into account.

On the whole though I like it and I think you can easily convert adventures to work with 2d10.

Agreed.  I'd even consider making 2/20 rolls even greater successes but it depends on the granularity you want.  If you're doing something more rules light then it's probably not recommended and just keep one level of crit.   Just for reference, 18-20 on 2d10 is a 6% chance so it's even closer to the 5% you get with a nat 20 on a single d20.

All in all, I also prefer 2d10 over a d20 that I've never liked having my entire turn being dependent on the vagaries of one single die.  In D&D, I've always opted either for characters that make multiple rolls or have different abilities keyed to different actions so I never felt like I wasted a turn completely if I missed my primary attack.

squirewaldo

#16
January 16, 2024, 10:23:24 PM
Quote from: RNGm on January 16, 2024, 08:27:55 PM
Quote from: squirewaldo on January 15, 2024, 01:59:15 PM

Just for reference, 18-20 on 2d10 is a 6% chance so it's even closer to the 5% you get with a nat 20 on a single d20.


yeah, you can definitely be more subtle in using/modifying the stats with 2d10. If you want more critical hits without making it crazy that is the way to go!
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