Tower defense is a sub-branch of the strategy genre... and it very suitable for mobile due to its slow and calculating nature. In this article, we are going to list out the top 5 best Mobile Tower Defense Games In 2021.

1 - Kingdom Rush Franchise

In Kingdom Rush, players are more focused on the abilities of towers and when they should activate them instead of the towers' variety. You would face up to 60 levels in this might & magic-themed tower defense game. Ever want to control a wizard army or shooting arrows down from a castle? You would definitely be sated with this game.


Overall, the customization is top-notch, with heroes, trinkets, army upgrades, achievements, challenges... and more.

2 - Arknights

This game is pretty unique in the genre, being a tower defense with gacha elements. In Arknights, you would build up a roster of characters through the gacha system then use them in place of the “towers” to fend off waves of enemies in maps. Each character would have their own stats, skill, traits, abilities… just like an RPG. The map designs are super unique as well, with each new level a fresh challenge.

Top gacha game

In general, Arknights is probably the best tower defense game in the market to date. Levels that have been cleared with a three-star rating can be auto-completed without player input, as the game records the player's actions and replicates them - this saves players a lot of grinding time, as they can just let the game grind itself.

3 - Bloons TD 5/6

Another great tower defense game... however, this one is more of a grind than Arknights, as there is just too much content to unlock - you can play the thing all day, with lots of levels being 100 rounds or more. The grind is fairly slow as well... and there aren't nearly as many towers in Bloons TD 6 comparing to Arknights.

Bloons Td 6 Ios Review Screenshot A Desert Level

This is also a paid game - you need to pay a small amount to buy the game... and if you are not up for the grind, you can also pay a little more to unlock benefits using microtransaction. There are 21 powerful monkey towers, each with 3 upgrade paths to choose between... along with 20 different heroes, each with their own unique skill.

4 - Iron Marines

Another game from the creators of the Kingdom Rush franchise - this time they are going to spaces... and defend with space marines!


Fight challenging real-time strategy sci-fi battles on amazing and unknown planets. Command and conquer brave soldiers, mighty mechas and aliens against hordes of space monsters, swarms of insectoids and robot armies in a galaxy far far away. The amount of content is fairly decent - there are 21 campaign missions across planets, 17 special operations... and 40 upgrades for your army.

5 - Plants vs Zombies 1 and 2

Nothing beats the classic - PVZ is still a top tier tower defense game worth playing in 2021.


Play the hit action-strategy adventure where you defend against legions of hilarious zombies across numerous levels. Amass an army of amazing plants, supercharge them with Plant Food, and devise the ultimate plan to protect your brain. With more than 300 levels, ultra-challenging endless zones, fun mini-games, and daily Piñata Party events, there’s always a new challenge to complete.

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