Description from itch.io page:
Track your life when playing Magic: The Gathering, or any other card and board games with Life Tracker for Playdate.
This clean/simple app has the option of 1 or 2 player layout (selectable from the menu screen).
Playdate's size and memory screen makes it the perfect score keeper. The screen is only refreshed when increasing/decreasing numbers, so won't drain your battery like using a mobile phone would.
Simply use A button to increase number, and B to decrease.
In 2 player mode, use the left and right buttons decrease and increase Player One's points, and A and B buttons to decrease and increase Player Two's.