Fill the Box

Draw lines. Fill the box. Survive. FillTheBox is a simple but addictive arcade game. Swipe to draw a line across the arena, the side without bouncing balls gets filled in. Fill enough of the arena to advance to the next level. Don't let a ball touch your line while you're drawing, or it's game over. No nonsense. No compromise. - No ads ever - No internet connection required - No sign-in required to play - No paywalls or in-app purchases Just you and the balls. How to play - Swipe left, right, up, or down to draw a line - The empty side gets filled, the side with balls stays open - Fill the arena to the target percentage to clear the level - Every level adds another ball and raises the target Three difficulties - Easy: a gentle introduction that ramps up gradually - Medium: for players who want a challenge - Hard: fast balls, steep targets, no mercy Features - Endless levels that keep getting harder - Local high score leaderboard - Google Play Games leaderboards and achievements (optional, offline play fully supported) - High-contrast mode for better visibility - Sound and vibration controls - Resume a game you left mid-session