ThreadLooking for (premium) mobile games that don't require constant focus
The only mobile game that has held my attention for longer than a month is Dice Hunter.
While it does use an energy system, I have never felt strapped for more vs not feeling done with my session. It's a dungeon crawler that involves 6 dice, each with their own "class" and ability. At one point I thought I had hit a wall but found there are alternate things you can do that are still fun in their own right and will help.
Only problem is if you are in the middle of a level and have it paused, if you lose connection it will send you back to the main area. That part does suck.