History ShoutOut / KingdomRush

* The Premium Content allows the player to choose three additional skin sets for reinforcements:

** ''Back in the Rotten Forest'', the first level of The Cursed Bargain mini-campaign, has 3 pieces of paper on certain trees. Clicking on them summons [[VideoGame/SlendermanTheArrival Slenderman]] - who is described as "an old-fashioned horror creature".

** ''The Lost Passage'' has [[Series/StrangerThings Demogorgon]] flowers that can be clicked on. In this same stage, you can find [[Film/JurrassicPark a Dilophosaurus egg]]: breaking it open frees that dinosaur.

** The Mogwai enemies are basically the namesake creatures from ''Film/{{Gremlins}}'', being small gremlins that multiply on contact with water.

** Golden Brewery has [[WesternAnimation/Simpsons Borney and the bartender]] appear among the drunk dwarves. You may click the bartender to have him serve more drinks to Borney until he falls asleep.

* One of the Rocket Rider's quotes are [[Franchise/ToyStory "To infinity and beyond!"]], [[Anime/{{Pokemon}} "Prepare for trouble!"]], and [[Film/MadMaxFuryRoad "Witness me!"]]
* Chomp Bots look very similar to Mousers from the ''Franchise/TeenageMutantNinjaTurtles'' series, the achievement for beating enough of them is even called Mouserthon.
* The names for the Dark Knights are based on actors who have played or voiced ''ComicBook/{{Batman}}'' in various media before.
* The Northern Tribe are essentially [[WesternAnimation/HowToTrainYourDragon vikings with trained dragons]], with Jokull being a massive dragon similar to the Red Death or Bewilderbeast. You even get an achievement called "How to tame your dragon" when beating Jokull. The Leap Dragons also resemble something that wouldn't be out of place in ''How To Train Your Dragon''.
* Bone Flingers' quotes reference various [[MemeticMutation skeleton-related memes]], such as [[https://knowyourmeme.com/memes/skull-trumpet-doot-doot "Doot Doot!"]] or WesternAnimation/TheSkeletonDance.
* One of the tower types appears to be a crypt that can "charge" up to three souls as projectiles, similar to the crypts from ''VideoGame/CursedTreasure''.
* The Doom Tank SG-11 Hero Unit is a direst reference to the Mark X from [=Ironhide's=] other game, ''VideoGame/IronMarines''. It's a huge tank that's capable of summoning soldiers as temporary reinforcements, and also has an attack which covers an area in hazardous stuff that deals DamageOverTime.
* [[Franchise/TheMuppets Kermit the Frog]], [[WesternAnimation/{{Futurama}} the Hypnotoad]], and VideoGame/{{Frogger}} appear in the frog-themed Subaquatic Menace mini-campaign.
* The Mogwai enemies are basically the namesake creatures from ''Film/{{Gremlins}}'', being small gremlins that multiply on contact with water.

* One BonusBoss is named [[VideoGame/ColossalCaveAdventure Xyzzy]], and looks like [[Franchise/{{Godzilla}} Godzilla]].

* In the level ''Beheader's Seat'', if you click on the bush in the middle of the level, [[WesternAnimation/WileECoyoteAndTheRoadrunner Roadrunner and Wile E. Coyote]] would appear to do their gag. The tunnel and a set of TNT are also seen on the left side of the level. Also, one of the statue showing a female plump ogre is based on the Art/VenusOfWillendorf figures. The level has digsites which wouldn't look out of place in Franchise/JurassicPark.

* Some of the assassins' random names are [[VideoGame/{{Hitman}} 47]], [[VideoGame/AssassinsCreed Altair, Desmond, Ezio]], [[Franchise/TheElderScrolls Lucien]], [[Film/TheProfessional Leon]], [[VideoGame/{{Dishonored}} Havelock]], and [[Film/{{Assassins}} Bain]].

** The assassin outfits, the alternate specialization being templars, and the desert area make the soldiers a reference to the first VideoGame/AssassinsCreed.

* In the level ''Beheader's Seat'', if you click on the bush in the middle of the level, [[WesternAnimation/WileECoyoteAndTheRoadrunner Roadrunner and Wile E. Coyote]] would appear to do their gag. The tunnel and a set of TNT are also seen on the left side of the level. Also, one of the statue showing a female plump ogre is based on the [[https://en.wikipedia.org/wiki/Venus_of_Willendorf Venus of Willendorf figures]]. The level has digsites which wouldn't look out of place in Franchise/JurassicPark.

* One of the Rocket Rider's quotes are [[WesternAnimation/ToyStory "To infinity and beyond!"]], [[Anime/{{Pokemon}} "Prepare for trouble!"]], and [[Film/MadMaxFuryRoad "Witness me!"]]

* The Lycan enemies (before transformation) look very similar to {{Wolverine}}.

* Arcane Archers have the [[Film/{{Rambo}} "RAMBO STYLE"]] achievement for killing things with explosive arrows.

* Sorcerers are often heard saying [[StarWars "Do or do not, there is no try."]] They also [[VideoGame/WarcraftIII polymorph people into sheep]].

* The first level has a [[Film/StarWarsEpisodeIThePhantomMenace boy with a shadow of Darth Vader]].

* In the Royal Gardens, there are hedges trimmed to look like [[VideoGame/{{Fallout}} Pipboy]] and a [[VideoGame/{{Mario}} Piranha Plant]]

* The extra content features the Deep Devils, who are pretty much [[Franchise/CthulhuMythos Deep Ones trying to awaken their leader Cthu... erm, Leviathan]].

* Similar to the Forgotten Treasures mini campaign in Origins (see the below folder), there are the GuestStarPartyMember dwarven units in 'The Dark Descent', where the leader is a CompositeCharacter of Durin Longbeard and Gimli, speak dwarvish, have Mithril-based gear, are named after several dwarven characters from Lord of the Rings, and of course, quote lines from the Franchise.

** Wild Magus parodying one of the Arcane Wizard's references by instead saying [[Film/{{TheLordOfTheRings}} "You shall not cast!"]]

** Bladesingers say [[Film/{{TheLordOfTheRings}} "A red sun rises."]]

* In the level ''Beheader's Seat'', if you click on the bush in the middle of the level, [[WesternAnimation/WileECoyoteAndTheRoadrunner Roadrunner and Wile E. Coyote]] would appear to do their gag. The tunnel and a set of TNT are also seen on the left side of the level. Also, one of the statue showing a female plump ogre is based on the [[https://en.wikipedia.org/wiki/Venus_of_Willendorf Venus of Willendorf figures]]. The level has digsites which wouldn't look out of place in ''Franchise/JurassicPark''.

* The Tesla engineers' taunts and quotes include [[{{Music/Metallica}} "Ride the lightning!"]], "[[Music/{{ACDC}} You've been thunderstruck]]" and [[MortalKombat "Toasty!"]]

** It also "possess" HulkSpeak, and has [[https://tvtropes.org/pmwiki/pmwiki.php/Franchise/MortalKombat Jaxx v2 arms]] when fully upgraded.

** The assassin outfits, the alternate specialization being templars, and the desert area make the soldiers a reference to the first VideoGame/AssassinsCreed

* One of the achievements are [[Music/TheBeatles Twist and Shout]][[note]]This achievement requires Spear Maiden from Level 7 to use their spin attack 50 times[[/note]]

* The Flesh Golem that's an ability you can get via The Dark Forge in Bonesburg is named [[https://tvtropes.org/pmwiki/pmwiki.php/Literature/Frankenstein Frankie]].