2019 · 战役设定（游戏世界）
Praxis: House of Keys
Adventurers take shelter from a violent storm in a decrepit mansion, only to become trapped by its shifting passageways, false doors, unseen sounds, and haunting apparitions. As an ancient evil toys with them, the players explore the mansion’s secrets and determine whether the spirits are enemies or guides. This story-focused roleplaying game uses the Protocol system and requires no gamemaster or prepared script. Players shape the characters, twists, and finale through shared storytelling, with an entire session playable in under four hours.
核心规则（开始对局的最低要求）基于描述（更偏叙事而非骰子）行动表（表格决定行动结果）卡牌（标准法式花色牌）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Praxis: House of Keys
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。