Some ideas...
I've been buzzing to finally get some of my suggestions out here.

1: Account select menu
As the name might suggest, there should be a menu that allows you to select any of your accounts, without having to keep inserting passwords. The way I imagine it, when "Start Game" is tapped, your accounts are all in a list, tap one to be instantly logged in to the chosen account.
2: Holiday Mode
This is an idea I hold very close to my heart, and I'm sure EVERYONE, sometime in their life will need this.
Holiday mode (bought for 5 coins a week) would refuse war, freeze all resources (thus stopping the dreaded starvation) whilst you're away.
3: Garrison
This is another idea I really hope makes the next update.
Whereas hunting in an oasis offers money and treasure, it leaves you vulnerable to "sweeping".
If you're hunting in an oasis and it's taken, your troops return to your city. Sitting ducks for anyone who wants some prestige.
But garrison is an option that appears on forts you or your alliance own. When you garrison, your troops stay at the fort, unharmed, even if it's taken. Staying in a hidden chamber, untouchable. Then you just call them back if you need them in your city.
Think garrison makes it too easy? It could cost 3-5 coins. You wouldn't get money or treasure, just that invaluable peace of mind.
Comment with any expansions!

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