The game revolves around a kingdom where monsters terrorize the populace. The plot follows the player commanding their kingdom's army, which consists of four parallel towers. These towers represent the Kingdom's Archers, Mages, Militias and Bombardments. Players must fight against the monster army with these resources. Archers towers shoot arrows at a specific monster until they cause damage or out of range. Likewise, mage towers ignore enemy armor and bombard towers deal AoE damage to a group of monsters. On the other hand, militia barracks produce soldiers tasked with intercepting the incoming threat. Some towers only appear in specific maps. Once these towers evolve past a specific point, they change appearance and damage output. Additionally, they can be upgraded to fall through 16 different towers. When players first choose a mode to play the game in, they have a choice between Casual, Normal and Veteran. Each difficulty level has its own unlockable mode after completing all Campaign mode levels with three stars. These are Heroic Challenge, Iron Challenge and Endless Mode Challenge. By successfully completing these modes, players will be rewarded from 1 to 3 stars based on how well it was played. There are over 60 unique monsters in Kingdom Rush; additionally, there are 11 boss monsters. Changes to how difficult the game is cause enemy Hit Points to change. Before every round, each index has a different name and requires players to work together to create a strategic or intellectual tower. This requires players to come up with strategies and build towers that are the most effective. Players have access to two unique spells. The first is “Call Reinforcements”, which spawns two soldiers that last for a set period of time. This allows players to buy time by distracting non-flying enemies. They also come equipped with the “Rain of Fire” spell. This creates a rain of fire that damages enemies within its radius. The "Rain of Fire" spell is the second one that a mage casts. When cast, it summons multiple meteors that deal damage to all enemies in its designated area. Additionally, this spell and the tower upgrades allow the player to win or lose the level based on how they use their magic.

Kingdom Rush includes the ability to command heroes. Heroes are unique to the game and are more powerful than other units. They gain experience through battles and can be deployed across the map. Just like enemy characters, heroes have Armor, Speed, Attack, and Health statistics. Their stats provide them with advantages and disadvantages that vary from hero to hero. Heroes recover from injuries quickly; they don't need to sit out an entire battle. They can be replaced after a certain period of time has passed since their last defeat. At the beginning of a level, all heroes start at level 1 and gain experience by attacking enemies. After reaching level 10, their strength, health and other stats increase accordingly. Each new level brings with it an increase in stats and a decrease to the previous one. When a level ends, heroes return to level 1. A hero's stats include Health, Attack, Ranged Attack and Speed. Of these, Heroes have two abilities they can unlock when they reach a certain level. A hero's stats increase at the same rate as other aspects of their abilities. Three basic heroes exist for free — Sir.Gerald the Lightseeker, Alleria the Swiftwind and Malik the Hammerfury. Premium heroes must be purchased; nine are available for purchase only through in-game sales. Sir Gerald is a mighty melee hero with high health, average speed and average damage. His skills boost the power of his allies and reflect damage to the enemy. Alleria is an elite elf marksman with low health and weak melee damage. She has high range damage and speed, though, and her ability allows her to shoot multiple targets at once and summon a wild cat to fight in front of her as a frontline. Malek is a gigantic man with a massive hammer that can pulverize his enemies despite his low speed. His power is enormous; he can stun his enemies and deal true damage with ease. Check out the other heroes in the game and discover their abilities! Kingdom Rush features an upgrade system. After each level, players earn stars that they can use to upgrade some of the game's components. Two spells and four towers can be upgraded; both increase their capabilities. Spell upgrades make the cooldown time last longer and tower upgrades increase their attack rate or range.

The Kingdom Rush brand is a familiar name to the community. In fact, it's one of the most popular online games of all time. Despite its popularity, the game's heat hasn't lost any steam over the years. This is likely due to the fact that it's easy and straightforward to play. Additionally, it's available on Flash, Android, iOS and Steam. It's also completely free to download and play. The Kingdom rush game has easy-to-understand graphics that appeal to players of all ages. This is why the game is so effective at capturing their attention and keeping it— despite its tactical nature and changing rules each level. Even today, the game is considered an excellent example of a young child's favorite game— and it was even honored as one of the best tower defense strategy games ever released.

Kingdom Rush: Origins features a hero Ten'shi who looks like an older man. Additionally, the game features information about him. Kingdom Rush's attack stat cap is reached, and one point gives players a thrill: his strong form.