The two best game apps on iOS and Android that use a crossbow are Defender II and Shoot the Zombirds. These two games generally fall into the Tower Defense type game genre.
Droidhen’s Defender II is the sequel to the successful Defender. The main objective of the game is to defend your castle from waves and waves of enemies. To attack, simply tap on it and point it in the direction of your targets. It will shoot automatically when your finger is pressed, so no need to constantly tap. Apart from that, you will also get access to spells that can decimate your enemies. When enemies arrive at your castle, the life of the castle is reduced. The game ends when it reaches zero.
Each level increases in difficulty and also the number of enemies to defend against. Some levels have bosses that will prove to be an additional challenge. As with its predecessor, you will get crystals and coins after completing each level. These will allow you to upgrade your weapon. You can update your various statistics. Increasing strength will increase your damage. Increased agility will increase the frequency of arrows. By unlocking these stats as well, you will also gain access to more skills and crossbow types. Upgrading the mana tower will increase your mana for spells and now it also shoots your enemies.
Also new in this version is the ability to deploy a lava pit before your castle. The lava pit will incinerate and burn all enemies that fall on it. The biggest addition to Defender II is the Battle mode. Now you can challenge other players who will survive the longest. Defender II is available for free on iOS and Android with options to purchase virtual currency to upgrade your skills and weapons.
IDream’s Shoot the Zombirds is the successor to Shoot the birds. The game involves you as Pumpkin Head or as a child shooting the undead birds in the sky and saving the little pumpkins along the way. You tap in the direction you will shoot.
Unlike Defender II, which doesn’t run out of arrows, this game does. It forces you to focus more on accuracy and timing rather than just carelessly shooting. You won’t miss an arrow when it hits a target, but you will miss it when you miss. The level ends when you reach the number of Pumpkids you can afford to lose.
There are fast and slow birds. Aside from the pumpkin-bearing birds, there are flying skulls that you can hit to get gold coins. These gold coins can be used to buy upgrades, such as one-time power-ups, like rain of arrows, or freeze all enemies on the screen. You can also use them to increase the number of arrows and the number of pumpkins that you can afford to lose. Costumes are also available to purchase if you want to change the look of your character.
Overall, Shoot the zombirds is another solid game. Its main attraction would be its simple and polished gameplay and presentation. Its theme is unique and differs from the usual ancient knights and dragons. This game is also available for free on both iOS and Android with options to buy instant gold coins.