Thranconia

Searching a dungeon, safely opening doors and chests, and other tasks are common in a dungeon adventure. They involve time, and the cost of spending time is the risk of Wandering Monsters. Time is measured in 10-minute long TURNS (or Exploration Turns). Wandering Monsters, under normal circumstances, are checked every 2nd turn, with a monster arriving on a 6+ on 1d6. Each character can perform ONE of these tasks during any turn spent searching or dealing with the surroundings. No more than 1 character can perform the same task on the same object at the same time.