Plain Watercolor pen is a puzzle game where you manage paint supply to finish levels. I find the easy controls and color challenges make it a simple thing to play.
You click to start the game and drag to paint, while ensuring the paint supply does not run out.
Clicking starts the game, and you drag to paint. The game has easy controls and color challenges, and you unlock new levels.
Most advice is to always save your paint first. Plan your brushstrokes to ensure the paint supply does not run out.
Q: What are the controls? A: Click to start and drag to paint.
Q: What is the objective? A: Ensure the paint supply does not run out.
Q: What stated feature is there? A: There are new levels to unlock.
Q: What is the main mechanic? A: Manage the paint supply while painting.