2006 · 战役设定（游戏世界）
Haven: City of Violence d20 Modern
A modern action-adventure roleplaying game set in Haven, a violent city shaped by criminals, corrupt police, immoral politicians, and public indifference. The setting blends elements of New York City, East Central Los Angeles, and Beirut, with conflicts driven by rival evils rather than a simple struggle between good and evil. The rules cover character creation, new feats and drawbacks, and the city’s history. Background material details important non-player characters and influential organizations, providing a foundation for adventures and power struggles in Haven.
资料书（用于增强玩法的规则/选项）技能型（购买或获得技能）基于属性/数值（STR、CON、PER 等）等级制（获得经验值并升级）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Haven: City of Violence d20 Modern
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。