Stronghold2D is a free multiplayer 2D war game. Build and customize your Stronghold and protecting it and by adding new weapons, shields, cannons, and many other game objects to defeat all of your neighbors. Consider this a tower defense type of game. You build your own base, and you attempt to destroy others and protect your Stronghold. Upgraded Buildings and Cannons will give you better features and will improve your Stronghold, based on your game-play.