Nava TD - Futuristic Medieval is a free tower defense game for Android devices developed by Own Games. The game takes place in a futuristic medieval city called Nava, where you must use your strategy to defend the city from the forces of High Tech Goblins and Orcs. Your goal is to build defensive towers to attack the hordes of Goblin riding jet packs, buggy cars, and motorbikes.

One of the main features of the game is the total of 16 tower types that you can arrange freely to create the best strategy. The game also offers lots of High Tech Goblins, and you can merge your towers to build the strongest towers. In addition, you can use items such as rockets, gravitational field, freeze beam, and Napalm Bomb to help you survive the attacks. As you progress through the game, you can unlock and open new lands and prepare for a bigger wave of enemies attacks.

Overall, Nava TD - Futuristic Medieval is an entertaining tower defense game that offers a good challenge for strategy game lovers. The graphics and sound effects are well-designed, and the controls are easy to use. If you are looking for a free tower defense game with a futuristic medieval theme, Nava TD - Futuristic Medieval is definitely worth checking out.