OpenEndedWürfel

OpenEndedWürfel is a modular open-ended dice system intended for use in tabletop role-playing games and digital dice applications. It centers on the idea of exploding results, allowing outcomes to extend beyond a single die throw. The term suggests an open-ended range of possible totals rather than a fixed, limited result set, enabling greater variability and scalability in gameplay.

Mechanics of OpenEndedWürfel typically involve dice that include one or more explosion faces. When such a face appears, the die is re-rolled and the new result is added to the previous total. Explosions can continue in a chain, potentially producing very large numbers. Variants exist to balance probability, for example by limiting the number of explosions per throw or by distributing explosions across additional dice. The core concept is compatible with common RPG tasks such as skill checks, combat resolution, and attribute tests.

The project is described as open and collaborative, with a specification document, reference implementations, and compatible design resources intended for both physical dice designers and software developers. OpenEndedWürfel emphasizes clarity and interoperability, aiming to provide a standard approach that can be adopted by different games and tools while remaining adaptable to homebrew rules.

In practice, players and game masters use OpenEndedWürfel to introduce heightened uncertainty and dramatic outcomes. The system is valued for its relative simplicity, reproducibility, and the ability to scale difficulty and effect sizes through the number and configuration of explosion dice. The development community typically stresses documentation, test coverage, and cross-platform compatibility to support a broad range of tabletop and digital gaming environments.