Your difficulty curve has a major role to play in preventing players from churning in your games.
They show the balance between skill/resources and challenge: low difficulty is when a player’s skill exceeds the challenge of a game, and high difficulty is when the game’s challenge exceeds the skill of the player. A well implemented difficulty curve can stop players from getting bored, motivate them to watch rewarded videos or make in-app purchases (IAP), and push them to keep progressing. That’s a lot to get right.
