Pedia special Call Reinforcements

In-game illustration.

Call Reinforcements is the first of the major spells in Kingdom Rush, Kingdom Rush: Frontiers and Kingdom Rush: Origins. When used, it spawns two troopers that last 20 seconds. Reinforcements act the same as troops summoned by any kind of Barracks, buying time by engaging non-flying enemies. It has a quick recharge rate of 10 seconds, so there is little sense keeping the spell charged: the more reinforcements on the battlefield, the more enemies are distracted. Reinforcements are useful as a replacement (albeit temporary) for barracks, sealing chokes, or holding back enemies straying too close to the exit. With their ranged attack upgraded, they can take on small number of flying enemies somewhat effectively.


In Kingdom Rush, initially, the spell summons two basic Farmers, but with upgrades they can become very powerful, able to kill weaker enemies. Their ranged attack, Throwing Spears, is very strong, able to take out hordes of annoying Gargoyles. Reinforcements are also affected by the Spiked Armor upgrade for the Barracks (soldiers return part of their damage taken in melee). Sprites are picked randomly from the pool of different three for each type available. Malik Hammerfury is the hero corresponding to the Reinforcements upgrade path. (Ranged attack rate: 1.4 seconds)

Level Sprites HP Healing When Idle (per second) Melee Damage Ranged Damage Armor
0 Farmer1Farmer2Farmer3 30 3 HP 1-2 None None
1 50 6 HP 1-3 None None
2 Conscript1Conscript2Conscript3 70 9 HP 2-4 None 10%
3 Warrior1Warrior2Warrior3 90 12 HP 3-6 None 20%
4 Legionnaire1Legionnaire2Legionnaire3 110 15 HP 6-10 None 30%
5 SpearThrow1SpearThrow2 110 15 HP 6-10 24-40 30%

In Kingdom Rush: Frontiers, Reinforcements have similar stats as in the original game, however wear different outfits and wield different weapons. Their ranged attack, Recurve Bow, is comparably weaker, yet faster than Throwing Spears, the ranged attack of Reinforcements in Kingdom Rush. (Ranged attack rate: 1.0 second / 1.4 seconds on Flash).

Level Sprites HP Healing When Idle (per second) Melee Damage Ranged Damage Armor
0 Volunteer1Volunteer2Volunteer3 30 3 HP 1-2 None None
1 50 6 HP 1-3 None None
2 MenAtArms1MenAtArms2MenAtArms3 70 9 HP 2-4 None 10%
3 Champion1Champion2Champion3 90 12 HP 3-6 None 20%
4 SwornBlade1SwornBlade2SwornBlade3 110 15 HP 6-10 None 30%
5 RecurveBow1RecurveBow2RecurveBow3 110 15 HP 6-10 16-30 30%

In Kingdom Rush: Origins, Reinforcements have improved HP, armor and damage compared to those of the previous two games. They also gain their ranged attack, the Elven Stars, earlier, at tier 2 star upgrade on the Reinforcements upgrade tree. However, the ranged attack is weakened by a slower attack rate (1.7 seconds). Also, the recharge period of the spell is increased to 15 seconds instead of 10 seconds, until tier 4 upgrade, "Rapid Response", is reached. The healing when idle is always 15 HP per second; the tier upgrades do not change the HP/s recovered.

Level Sprites HP Melee Damage Ranged Damage Armor Recharge
0 SkilledDefenders1SkilledDefenders2SkilledDefenders3 40 1-3 None None 15 seconds
1 60 3-5 None 20% 15 seconds
2 ElvenStars1ElvenStars2ElvenStars3 60 3-5 7-10 20% 15 seconds
3 GreenWardens1GreenWardens2GreenWardens3 100 5-10 10-20 35% 15 seconds
4 100 5-10 10-20 35% 10 seconds
5 MoonSentinels1MoonSentinels2MoonSentinels3 150 10-15 20-30 50% 10 seconds

Related Upgrades

Kingdom Rush

  • KR Up WellFed Well Fed (2 Stars): Well Fed Farmers have additional health and deal a little more damage.
  • KR Up Consc Conscripts (3 Stars): Conscripts have more health and are better equipped.
  • KR Up Warr Warriors (3 Stars): Warriors have even more health and are excellently equipped.
  • KR Up Legion Legionnaires (3 Stars): Legionnaires have the most health and wear the best equipment.
  • KR Up SprThrw Spear Throw (4 Stars): Gives Legionnaires a spear throw attack that can target ground and flying enemies.
  • KR Up Spiked Spiked Armor (3 Stars): When attacked, soldiers' spiked armour return a percent of the damage received to the attacker. (~12.5% reflection of damage as True Damage)

Kingdom Rush: Frontiers

  • Up KRF Trained Trained Volunteers (2 Stars): Trained Volunteers have additional health and deal a little more damage.
  • Up KRF MenatArms Men-at-Arms (3 Stars): Men-at-Arms have more health and wear good armor.
  • Up KRF Champion Champion (3 Stars): Champions have even more health and wield great weapons.
  • Up KRF Sworn Sworn Blades (3 Stars): Sworn Blades have the most health and wield dual weapons.
  • Up KRF Recurve Recurve Bow (4 Stars): Gives reinforcements a ranged weapon that can target ground and flying enemies.
  • Up KRF Courage Courage (3 Stars): While in combat, soldiers, mercenaries & reinforcements regenerate health. (It doesn't when under area attack.)

Kingdom Rush: Origins

  • KRO Upgrade R 01 Level-1 Skilled Defenders (2 stars): Skilled defenders have more health and better equipment.
  • KRO Upgrade R 02 Level-2 Elven Stars (3 stars): Gives reinforcements a ranged weapon that can target ground and flying enemies.
  • KRO Upgrade R 03 Level-3 Green Wardens (3 stars): Green Wardens have more health, better armor and improved weapons.
  • KRO Upgrade R 04 Level-4 Rapid Response (3 stars): Reduces reinforcements cooldown by 5 seconds
  • KRO Upgrade R 05 Level-5 Moon Sentinels (4 stars): Moon sentinels are elite elven huntresses, riding giant panthers.

Premium Content

On the Flash version of Kingdom Rush, after purchasing the Premium Content, the amount of troopers one can deploy at once with the Reinforcement spell is increased from two to three. Additionally the player can select costumes for the reinforcements to wear. The sets include:

  • Star Wars themed pack: Chewbacca, Darth Vader, Obi-Wan Kenobi and Yoda.
  • Mortal Kombat themed pack: Goro, Liu Kang, Scorpion and Sub-Zero.
  • Street Fighter themed pack: Blanka, Ken, Guile and Ryu.


Kingdom Rush and Frontiers

  • Reinforce!
  • Freedom!
  • To battle! (Flash and Steam only)
  • Rawr!


  • Swords ready!
  • Incoming!
  • Reinforce!