Old-School Essentials Adaptation Guidelines

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Over the last two decades, a large number of old-school adventure games have been published, many of which—like Old-School Essentials—are closely compatible with the 1981 Basic/Exp ert rules. While each of these games has its own variations on rules, presentation, and terminology, many are high cross-compatible. This cross-compatibility between games means that a great wealth of adventures, campaign settings, and rules supplements written for other old-school systems can be used with Old-School Essentials. Material written for Old-School Essentials can likewise be used with many other old-school systems. This document provides guidelines for using material written for some of these systems with Old-School Essentials, and vice versa. Show more