Sandbox and building games
Build with blocks, draw tracks or play with falling sand: Minecraft Classic, Miniblox, Line Rider and Sandspiel all run in your browser.
Minecraft ClassicSandbox and building
The 2009 Minecraft in a browser: 32 blocks, creative mode, build with friends by link.
Line RiderSandbox and building
Draw a track with the pen and send a sledder down it. Physics does the rest.
MinibloxSandbox and building
Block game with Bedwars, Skywars and survival servers.
SandspielSandbox and building
Falling-sand sandbox. Pour water, sand, fire, plants and acid and watch them react.