A tactile die for playing a game, the die comprising a plurality of sides, wherein each side comprises a face having a braille character, each side comprises 3 or more raised border edges surrounding the face, and wherein one of the 3 or more raised border edges is an indicator edge configured to indicate an orientation of the face, the indicator edge comprising an indent along a length thereof.

The proposed is a rounded dice with multiple faces. Proposed dice provide a better rolling experience to the user/player participating in the game of dice. According to an embodiment of the proposed invention, the rounded dice comprises a hollow dice body configured to have a plurality of faces, each face is provided with an identifier for play purposes like in role-playing games or DND dice games; a plurality of pins extending outward from the dice body and facilitating the dice to stop rolling excessively; and a plurality of links, each link connects two pins of the plurality of pins.

The invention relates to dice suitable for use in gaming. In particular the invention relates to a new indicator system for use in gaming dice, the indicator system providing a di value. More specifically the invention relate to a di incorporating the indicator system providing a di value, and the use of the di to provide a di value, and a method of using the di.

Methods and systems for designing and manufacturing a mathematically fair N-sided die are disclosed. An example method can comprise selecting an irregular polyhedron to serve as a die, and determining a center of mass of the selected irregular polyhedron die. In an aspect, a size of each face of the irregular polyhedron can be selected such that a solid angle subtended by each face from the center of mass of the selected irregular polyhedron can be equal. In an aspect a system comprising an injection molding apparatus can be used to form the die.

One embodiment of a plurality of dice with markings such that when the primary die is rolled a user either lands on a randomized result within the predetermined probability distribution or is directed to roll a secondary die which either provides a result or directs the user to roll a tertiary die. In the embodiments discussed here the final result is achieved on the first roll over 90% of the time. The embodiments described and shown are capable of representing complex distributions that include highly improbable outcomes, providing users with the convenient alternative of simply reading the result rather than performing comparative and mathematical operations on the results of multiple dice rolls.

Dice which have the exterior form of regular polyhedrons, but are not solid polyhedrons. Instead, the dice, when viewed externally, are in the form of skeletal polyhedrons with floating faces. The dice also include a solid core surrounding their center which can serve to improve tumbling behavior.

A system and method for teaching arithmetic has a plurality of training aides or manipulatives wherein a child/student learns arithmetic facts by executing the method using the system. The physical training aids may include a plurality of dice (10,12), a numerical board (20), a plurality of pennies (26) and a container (22). The physical training aids are used with the child where the child creates addition/subtraction problems by rolls of the dice (10,12) wherein the child uses the numerical board (20) and container (22) along with the pennies (26) to solve problems and verify answers by direct observation. Games may be incorporated where the child can use the system and method in playing the games.

Methods and systems for designing and manufacturing a mathematically fair N-sided die are disclosed. An example method can comprise selecting an irregular polyhedron to serve as a die, and determining a center of mass of the selected irregular polyhedron die. In an aspect, a size of each face of the irregular polyhedron can be selected such that a solid angle subtended by each face from the center of mass of the selected irregular polyhedron can be equal. In an aspect a system comprising an injection molding apparatus can be used to form the die

Certain embodiments of 60-sided and 120-sided replacement dice each having a probability distribution equivalent to that of a subject die with fewer faces than the corresponding replacement die such that each replacement die can be used in place of the corresponding subject die.

An electronic die capable of reporting roll results is disclosed. The die can include an acceleration measurement system capable of outputting roll data. A processor can then interpret the roll data and transmit it through a wireless interface to a monitoring device. The monitoring device can then show a user the roll result. Waking the electronic die from a low power mode is also disclosed along with customizing the electronic die with faceplates and protective covers.