7d10

7d10 refers to a dice roll using seven ten-sided dice. In tabletop role-playing games and other probabilistic systems, dice are used to introduce randomness and determine outcomes. A ten-sided die, often denoted as a d10, has faces numbered from 0 to 9 or 1 to 10. When rolling seven of these dice, the results are typically summed to produce a single numerical outcome.

The range of possible results for a 7d10 roll depends on the numbering convention of the dice. If the dice are numbered 0-9, the minimum possible roll is 0 (seven zeros) and the maximum is 63 (seven nines). If the dice are numbered 1-10, the minimum roll is 7 (seven ones) and the maximum is 70 (seven tens). The distribution of results tends to follow a bell curve, with outcomes closer to the average being more probable than extreme results. The average result for 0-9 dice is 31.5, and for 1-10 dice is 38.5.

The 7d10 mechanic is less common than rolls involving fewer dice, such as d6 or d20. It is sometimes employed in systems that require a wide range of possible outcomes or a more granular probability curve than can be achieved with fewer dice. For instance, it might be used to determine damage for very powerful weapons, the complexity of a magical effect, or the success level of a highly variable skill check. The use of seven dice can create a more nuanced distribution of results, allowing for finer distinctions in outcomes compared to systems relying on single dice or smaller pools.