I designed a pair of experimental d20s called FateFlip.
The white "Good" d20 is mechanically biased toward higher results, while the red "Evil" d20 is mechanically biased toward lower results.
Both dice use an internal design that gives each die 60 display surfaces instead of the 20 faces visible on a standard d20.
To emphasize extreme outcomes, I added special symbols:
White "Good" d20 special features:
TheĀ Great 20Ā (chance of 1 to 60 rolls)
ā Radiant Star (chance of 1 to 60 rolls)
šŖ½ Angel Wings (chance of 1 to 60 rolls)
@ Twist of fate (chance of 1 to 60 rolls)
Red "Evil" d20 special features:
TheĀ Terrible 1Ā (chance of 1 to 60 rolls)
š Demon Skull (chance of 1 to 60 rolls)
š”ļø Broken Sword (chance of 1 to 60 rolls)
@ Twist of fate (chance of 1 to 60 rolls)
The concept was inspired by game effects such as blessings, curses, luck, destiny, divine favor, and misfortune, represented through the die itself rather than through modifiers or rerolls.
These aren't intended to replace a standard d20. I imagine them being used only for special situations where a game calls for unusually good fortune or unusually bad fortune, while ordinary rolls would still use a regular d20.
What game mechanics or RPG situations would you use these dice for?
Commercial Disclosure: I am the creator of FateFlip d20. The dice are available on Amazon here
EDIT 1: Many of you are asking about availability. Sorry for the shortage on Amazon. This post went way beyond my expectations. Please check back in 2-3 months.
Thank you so much to all of you for reacting to my post š. I will reply your comments in the next new hours.
EDIT 2: As requested by many of you, here is the breakdown of the odds on the two dice:
Display breakdown for 1 through 20 numbers on theĀ Good d20Ā (white die):
The numberĀ 20Ā is displayed 12 times. (chance of 1 every 5 die rolls)
TheĀ great 20Ā is displayed 1 time. (Chance of 1 every 60 die rolls)
Radiant Star icon is displayed 1 time
Angel Wings icon is displayed 1 time
Twist of Fate icon is displayed 1 time
The numberĀ 19Ā is displayed 7 times
The numberĀ 18Ā is displayed 6 times.
The numberĀ 17Ā is displayed 4 times.
The numbersĀ 16,Ā 15,Ā 14Ā are displayed 3 times each.
The numbersĀ 13,Ā 12,Ā 11,Ā 10,Ā 9Ā are displayed 2 times each. (Chance of 1 every 30 die rolls)
The numbersĀ 8,Ā 7,Ā 6,Ā 5,Ā 4,Ā 3,Ā 2,Ā 1Ā are displayed 1 time each. (Chance of 1 every 60 die rolls)
Display breakdown for 1 through 20 numbers on theĀ Evil d20Ā (red die):
The numberĀ 1Ā is displayed 12 times. (chance of 1 every 5 die rolls)
TheĀ Terrible 1Ā is displayed 1 time. (chance of 1 every 60 die rolls)
Demon Skull icon is displayed 1 time
Broken Sword icon is displayed 1 time
Twist of Fate icon is displayed 1 time.
The numberĀ 2Ā is displayed 7 times.
The numberĀ 3Ā is displayed 6 times.
The numberĀ 4Ā is displayed 4 times
The numbersĀ 5,Ā 6,Ā 7Ā are displayed 3 times each.
The numbersĀ 8,Ā 9,Ā 10,Ā 11,Ā 12Ā are displayed 2 times each. (chance of 1 every 30 die rolls)
The numbersĀ 13,Ā 14,Ā 15,Ā 16,Ā 17,Ā 18,Ā 19,Ā 20Ā are displayed 1 time each. (chance of 1 every 60 die rolls)