History VideoGame / HiddenExpedition

* AluminumChristmasTrees: The fire-ice in ''Lost Paradise'' sounds like something invented for the game; however, as one of the fact cards reveals, it's actually a substance which exists in real life. Just as in the game, it's believed that it could potentially solve the world's energy needs. Unfortunately, because it's only known to exist at the bottom of the ocean, extracting it is currently next to impossible.

* DistressedDude: In the games where he appears, Sam finds himself in trouble relatively often, especially considering that he's supposed to be a high-ranking agent. He's usually fairly calm about it, taking everything in stride and confident that you'll find a way to thwart whoever's got him tied up this time. ''Altar of Lies'' is an exception, however, as he is ''very'' rattled by the attackers trying to shoot the two of you.

* HistoricalDomainCharacter: Historical figures show up from time to time, usually famous inventors or explorers. In ''Golden Secret'' it's revealed that Sir Walter Raleigh [[spoiler:was significant to the founding of H.E.L.P. itself. The order was founded and financed using gold collected during what turned out to be his final expedition.]] ''A King's Line'' uses a fair bit of actual Welsh history, including the annexation of Wales under the reign of [[UsefulNotes/TheHouseOfPlantagenet Edward I]].

** ''Lost Paradise'' opens with the player character waking up on a beach next to a wrecked speedboat, and must put together what happened.

* TheMole: Mentioned repeatedly throughout ''Altar of Lies'', since all of H.E.L.P. thinks that ''you'' are the mole. As the game progresses, it becomes clear that someone inside the organization is indeed working with the enemy, and they almost all think it's you. The only ones who know better are Agent Walker, who vanishes early in the game; [[spoiler:Sam, once he reveals that ReportsOfMyDeathWereGreatlyExaggerated;]] and Superintendent Miller, who contacts you throughout the game and urges you to return to headquarters so he can help you. [[spoiler:Miller turns out to be the MoleInCharge, which Sam discovers when the boss shoots him. He gets better.]]

* GameWithinAGame: Interacting with the office computer at the mechanic's garage in ''Altar of Lies'' brings up the start screen for ''Amaranthine Voyage: The Burning Sky'', which is another product of Eipix Entertainment.

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* CosmeticAward: Reaching the summit of Everest in, well, ''Everest'' earns your character a certificate of merit.
* DistressedDude: In the games where he appears, Sam finds himself in trouble relatively often, especially considering that he's supposed to be a high-ranking agent. He never seems particularly ''emotionally'' distressed, however, taking everything in stride and confident that you'll find a way to thwart whoever's got him tied up this time.

** In ''The Golden Secret'', the player actually signs a guest register at the auction house. The handwriting is almost indecipherable with how swirly it is, but examining it closely suggests that her first name is Chris.

* FunWithAcronyms: Once Eipix takes over and changes the name of the organization you work for to '''H'''idden '''E'''xpedition '''L'''eague of '''P'''reservation, having a minor character say they "need [=HELP=]" shows up a ''lot''.

** He does it again in ''Altar of Lies'', when he and the player find themselves suddenly under fire by unfamiliar enemies with guns. He gives the player a machete and tells her to run while he covers her.

** ''Everest'' starts off with what amounts to a tutorial level, but the level in question is one from late in the game.