2011 · 核心规则（开始对局的最低要求）
Mecha d20 - System Reference Document
A d20 game system for creating and using mecha, including giant robots, powered armor, spaceships, tanks, submarines, motorcycles, and other vehicles. It provides rules for describing mechanical designs in game terms and using them in adventures, with a focus on anime-style machines.
- 人数
- 0
基于种族（玩家的种族/物种影响游戏玩法）骰子（主要为 d20）骰子（多种）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Mecha d20 - System Reference Document
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。