Paper.io 2

Five minutes is all it takes to get hooked on Paper.io 2. You start with a tiny colored square, drag out into the white space around you, and loop back to seal off a new chunk of map. Simple to start, but the second you cross into someone else's turf, your tail is hanging out there exposed.

That's the whole tension of the game: every trip away from your safe zone is a gamble. Stay tucked in and you barely grow. Push out too far and someone slices your tail before you make it home, and you're done. Watching your colored area creep up the lobby leaderboard while you decide how greedy to get is where the fun lives.

It runs straight in the browser on desktop or mobile, no download needed, so a quick round fits into any five-minute gap in your day. If you're already a fan of Arcade games, this one earns its spot on the list without ever feeling complicated.

Want something with more physical stunts once you've had your fill of territory grabs? Stickman Hook is worth a swing.

Conquer as much of the map as you can and finish with the highest score in the lobby. Move your paper block with the mouse, arrow keys, or WASD to drag a line out from your colored zone and back again, sealing off new territory as you go.

The moment you step outside your own color, your tail is exposed - if another player cuts across it, you're eliminated. Grow your area by painting over rivals' space, but don't wander too far without a plan to get home.

Tip: short, greedy loops close to your border are safer than one huge lap around the map.