The rule beginners miss
Your mines are permanent only if they stay active.
Activity is tracked per property. A mini-game, daily maintenance action, or player check-in can refresh the mine.
150 daysFirst warningSort your property list by inactivity and refresh the at-risk mine.
180 daysEarnings pausePassive USD stops until a qualifying activity is completed.
330 daysFinal warningThe mine is approaching permanent forfeiture.
365 daysMay be forfeitedThe TerraAcre can return to the unclaimed pool and progress may be lost.
Scale-friendly habitOnce a month, sort Properties by inactivity and refresh the oldest mines first. Busy public locations can receive organic check-ins, reducing future maintenance.