Heart Box

Robby is a robot with a battery problem, and Professor Rat built him a whole world of puzzle rooms to prove it. Your job in Heart Box is simple to state and tricky to pull off: pop, drag, and destroy objects until Robby rolls into that red charging station. It is the kind of game that rewards you for looking twice before you touch anything.

If you're the sort of player who pokes at every object in a room just to see what happens, this is your kind of game. Over 180 levels means the tricks keep changing, and just when you think you have seen every physics gimmick, the room throws a new one at you.

Done with the built-in levels? Heart Box hands you a Level Editor so you can build your own puzzle rooms, and there is a Community Levels database with thousands more made by other players. It turns a single-player puzzler into something you can keep coming back to.

It plays on desktop, Android and iOS, right in the browser, no download needed. If you like the sound of poking at mind games until something clicks, this one is worth the click.

Guide robot Robby into the red charging station to complete each level.

Use the left mouse button on PC, or your finger on mobile, to pop, destroy or move the objects standing between Robby and his charger.

Look at the whole room before you touch anything. Heart Box levels are built around chain reactions, so popping the wrong object first can leave Robby stuck instead of charged.

When you run out of official levels, try the Community Levels database or build your own room in the Level Editor.