Build with Cubes 2

Grab a block, slap it onto another, and suddenly you're flying through a sky full of half-finished castles and floating bridges.

Build with Cubes 2 is a weirdly meditative 3D sandbox that gives you a handful of simple tools and then gets out of your way. You can fly, place blocks, destroy them, pick up objects, and even drop portals. It's less about finishing anything and more about the quiet satisfaction of watching your own little world take shape. The 'aha' hit me when I accidentally right-clicked a floating island I'd been building and watched the whole corner vanish. No warning, no undo — just gone. That's when I realized the game trusts you to make mistakes. You can build a staircase to nowhere, carve a tunnel through a blocky mountain, or pick up a sheep and carry it across the map just because you can. The portal mechanic (Z and Q) is the real star — drop two portals and you can fling yourself across the map like a budget Portal gun. It's not a game with a scoreboard or a tutorial that holds your hand. You'll probably spend the first five minutes flailing with the camera, then something clicks and you're suddenly rearranging the skyline. I kept coming back to it between more intense games — it's a palate cleanser with just enough weird physics to keep things interesting.

Arrow keys / WASD to move around and control flight; hold LMB and move mouse to rotate camera; Spacebar - to jump; E to pick up objects; LMB click to select block and place new one; RMB to destroy any block and picked object; Z and Q - create portals

Right-click destroys whatever you're pointing at — use it to fix mistakes, but don't get too attached to your creations. Press Z and Q to place portals, then jump through one to rocket out the other side — great for crossing the map fast. Hold left mouse button and drag to spin the camera; your character moves separately with WASD or arrow keys. Press E to grab objects like sheep or loose blocks, then drop them somewhere ridiculous. Spacebar gives you a little hop — combine it with flight by holding space while moving upward to gain altitude.

Q: Is Build with Cubes 2 free to play? A: Yes, it's completely free in your browser with no hidden fees or paywalls. Q: Can I play Build with Cubes 2 on mobile? A: The game is designed for desktop browsers with a mouse and keyboard. Touch controls are not supported. Q: Do I need to download anything to play? A: No downloads or plugins needed. Just open the page and the game runs instantly in your browser. Q: What are the controls for Build with Cubes 2? A: Use WASD or arrow keys to move, left click to place blocks, right click to destroy, E to pick up, Z/Q for portals, Space to jump. Q: Is Build with Cubes 2 multiplayer? A: No, it's single-player only. You can build solo without any server lag or connection issues. Q: Can I save my builds? A: Your creations are not saved after you close the tab — it's all about the momentary fun of building.