Build and Fly Obby

The moment your plane clears the runway and starts tipping sideways is when Build and Fly Obby gets good. You bolted on those parts yourself, so when the wobble turns into a spin, you already know exactly which piece to blame - and swapping it out for the next attempt is half the fun.

You play mad inventor here. Grab an item from your inventory, tap it onto the plane, and see what happens. Some builds spin out immediately, some wobble but limp along, and every so often you land on a combo that soars clean through the sky. Fly forward, dodge obstacles, grab coins and bonuses, and thread rings and gates as you go.

Fly farther and you unlock more parts, which means your machines get weirder and, sometimes, better. Multiple biomes give you fresh scenery to crash-land in, and the physics genuinely change with every design, so no two builds fly quite the same. If you like tinkering and testing over and over, this sits nicely alongside other Building Games and Arcade games on the site.

It runs free in the browser on desktop, Android, and iOS - no download, no fuss, just you, some spare parts, and a runway.

Build a plane out of random parts and get it flying as far as you can, dodging obstacles and grabbing coins, bonuses, rings, and gates along the way.

To build, select an item from your inventory and tap it onto the plane to attach it. Once you're flying, use WASD or the arrow keys to move, right-click to rotate the camera, and space to jump. On phone, use the joystick to move and swipe the screen to rotate the camera.

Don't be afraid of a bad build - crashing just means you learn which part to swap out. The farther you fly, the more parts you unlock, so keep experimenting.