The Shelter can be used to protect a player's Leader and a single march for a set period of time. During this time if the player's Castle is attacked, troops in the Shelter cannot be attacked. Players cannot deploy or switch their Leader if it is currently in the Shelter, as it is considered In Battle.
Players can choose shelter duration's of 1 hour, 4 hours, 8 hours, or 12 hours. The army can be recalled from the Shelter at any time. If notifications for the Shelter are turned on, the player will receive a notification 10 minutes before the shelter time expires.
The maximum number of troops that can be hidden in the Shelter is the Shelter Capacity. The Shelter Capacity is limited to the player's march size, which is determined by their Castle level (200,000 at level 25, or 300,000 using a 50% Army Size Boost).
Sheltering a players leader will also increase the number of troops that can be sheltered. The amount depends on the Hero Rank (shield icon):
With all of the above upgrades considered, and a 50% Army Size Boost activated, the Shelter can hold up to a maximum of 450,000 troops.
To turn notifications for the Shelter on or off:
- Tap on the the Other icon, on the bottom of the screen
- Tap on Notifications
- Scroll down to the bottom to find Shelter