tanks-game | A turn-based artillery game with Tanks | Game Engine library

Not possible, unless running in PhantomJS or something similar. Phaser is heavily reliant on the DOM, which doesn’t exist in a Node.js environment.

Use a third-party library to compute physics, or roll your own.

Using the entire Phaser framework on your server would use up a lot of memory regardless, and your computations would likely be slower since they were based on a browser instance, rather than computed on-the-fly.