Drone Core is a game I worked on with a friend about a year ago. He's a 3D artist and I'm a developer. The game uses WebSockets for communication, and movements and chat occur in real-time. The game itself is turn-based, so you can watch your enemy slowly fumble around. The engine is entirely custom (rendering the isomorphic hex grid looked like it was going to be painful in existing engines), though I recently switched to Phaser for other projects. While the game can be entirely controlled by clicking on the menu on the left, using a keyboard and a desktop computer is highly recommended.