Project Tank popped up on our radar for two reasons. First of all, it was a browser-based multiplayer tank-based combat simulator. Second, it bore a lot of similarities to the existing multiplayer tank-based combat simulator World of Tanks, enough that Wargaming.net brought out the copyright lawyers. A copyright infringement suit was filed today by Wargaming.net, claiming that Project Tank directly copies many elements of World of Tanks and violates some existing patents.
Gamebox has responded to these claims on the official site for the game, claiming that Wargaming.net has engaged in "underhanded" actions to try to shut down the project. This marks the end of the closed beta for Project Tank, which is promising open beta in approximately a month. You can take a look at the side-by-side comparison from before and draw your own conclusions about whether Project Tank is being unfairly accused or entirely fairly accused.