On 14 Feb 2024, gbbgu wrote:

A light engine TTRPG with a solid structure, using only d³s.

Thrice Fantasy is a flexible and comprehensive TTRPG, with a fresh and flowing
gameplay. The rulebook allows you to play in fantasy settings. Thrice Fantasy is the first product to use the Thrice engine, a rule system that will be employed in various styles and genres, as we'll explore in upcoming Thrice-based releases.

http://kck.st/42HroaX

Thrice uses special six-sided dice on which the number 1 appears on one face,
2 on two, 3 on three. These dice are d³, pronounced "d-thrice". One d-thrice
is referred to as 1d³, two dice as 2d³, and so on.

Each die rolled in the game aims to obtain a target number, which can be 1, 2
or 3. If the result of a die is equal to the target number, that die scores a
success. The target is indicated in round brackets after the number of dice. >> If a trap inflicts 5d³(3), the Master rolls 5 dice: each result of 3
represents one damage inflicted.

As an alternative to d³, you can use ordinary six-sided dice (d6). In that >> case, if the result of a die is equal to or less than the target number, that
die scores a success.

I won't post the whole kickstarter detail, but I thought the custom dice was interesting.

This breaks down to:

need a 1: 16.6% (1 in 6 chance)
need a 2: 33.3% (1 in 3 chance)
need a 3: 50% (1 in 2 chance)

Using a d6 as suggested would be:

need a 1: (roll a 1) : 16.6%
need a 2: (roll a 1, 2) : 33.3%
need a 3: (roll a 1, 2, 3): 50%

rolls of 4-6 are ignored

If you want to play around with https://anydice.com, this formula is for the example given above 5d³(3):

output [count 3 in 5d{1, 2, 2, 3, 3, 3}]

Chances of each result (counting how many 3s you get):

0 "3s": 3.125%
1 "3s": 15.625%
2 "3s": 31.25%
3 "3s": 31.25%
4 "3s": 15.625%
5 "3s": 3.125%




--
gbbgu

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On 2/14/24 4:00 AM, kyonshi wrote:

On 2/14/2024 1:24 AM, gbbgu wrote:

A light engine TTRPG with a solid structure, using only d³s.

Thrice Fantasy is a flexible and comprehensive TTRPG, with a fresh and
flowing
gameplay. The rulebook allows you to play in fantasy settings. Thrice
Fantasy
is the first product to use the Thrice engine, a rule system that will be
employed in various styles and genres, as we'll explore in upcoming
Thrice-based releases.

http://kck.st/42HroaX

Thrice uses special six-sided dice on which the number 1 appears on
one face,
2 on two, 3 on three. These dice are d³, pronounced "d-thrice". One
d-thrice
is referred to as 1d³, two dice as 2d³, and so on.

Each die rolled in the game aims to obtain a target number, which can
be 1, 2
or 3. If the result of a die is equal to the target number, that die
scores a
success. The target is indicated in round brackets after the number
of dice.
If a trap inflicts 5d³(3), the Master rolls 5 dice: each result of 3
represents one damage inflicted.

As an alternative to d³, you can use ordinary six-sided dice (d6). In
that
case, if the result of a die is equal to or less than the target
number, that
die scores a success.

Preface: I genuinely have no intuition for probabilities

Thank the heavens, it's always such a trouble to half the d6s to make d3s.

But it's not the same is it?

With the Thrice Dice (or with the standard d6 alternative), it is
describing an 3-in-6 (50%) chance, a 2-in-6 (33%) chance, and a 1-in-6
(16%) chance.

Halving a d6 wouldn't give you the same 122333 probability spread.

In any case, I like it. I think it's cute. The custom dice are pretty
neat, and it's also perfectly playable without them as well. I think
that versatility makes it a pretty clever system.

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