Hidden Expedition is a long-running Hidden Object Game series. The first five games were produced in-house by Big Fish Games, starting with the sixth the hands-on work was taken over by Eipix Entertainment with Big Fish retaining distribution.
The early games are almost purely hidden object hunting with a few bonus puzzles for variety. By Devil's Triangle, the series switches over to IHOG (interactive Hidden Object Game) format.
The games in the series are:
- Hidden Expedition: Titanic: The player-character, a member of the Hidden Expedition Adventure League, has been called on to search the wreckage of the Titanic.
- Hidden Expedition: Everest: The player-character is racing three other groups to the top of Mount Everest. All the groups are on the trail of an eccentric explorer who claimed to have discovered a shortcut to the peak.
- Hidden Expedition: Amazon: The player-character has to track down a missing scientist.
- Hidden Expedition: Devil's Triangle: A pilot for the Hidden Expedition Adventure Team has disappeared in the Bermuda Triangle.
- Hidden Expedition: The Uncharted Islands: A sequel to Devil's Triangle, the player-character is trying to escape the Bermuda Triangle.
- Hidden Expedition: Smithsonian Hope Diamond: The player-character, a new recruit to the Hidden Expedition League of Preservation, has to find missing fragments of the Hope Diamond and solve the message coded into them before a band of thieves gets them.
- Hidden Expedition: The Crown of Solomon: Can you keep the fragments of King Solomon's crown out of the wrong hands?
- Hidden Expedition: Smithsonian Castle: The player-character must solve a mystery connected to the founding of the Smithsonian Institution.
- Hidden Expedition: Dawn of Prosperity: Strange earthquakes in Montana put the player-character on the path of a hidden community.
- Hidden Expedition: Fountain of Youth: Follow the path of Ferdinand Magellan's voyage to find your fellow agents.
- Hidden Expedition: Midgard's End: The player-character must stop an attempt to trigger Ragnarok.
- Hidden Expedition: The Eternal Emperor: An expedition into the tomb of Qin Shi Huang leads to danger.
- Hidden Expedition: The Lost Paradise: A lost civilization may hold the key to a new energy source.
These games contain examples of:
- Bloodless Carnage: A mild example in The Eternal Emperor. Two characters get shot (one fatally), but not only is there no blood their hazmat suits aren't damaged — despite the fact that getting Gunshot Victim #2 out of the tomb before the mercury vapors finish him off is a plot point.
- Continuity Nod: The prototype sub in Devil's Triangle is powered by tech based off discoveries in Amazon.
- Everyone Calls Him "Barkeep": In the first few Eipix-produced games, Sam calls your character "Rookie", later games change this to "Agent".
- Excuse Plot: Yeah, even the later games are pretty much "how can we link these locations together into a single game?"
- Featureless Protagonist: The final cutscene in Titanic shows a generic figure in a diving suit, but that's as much as we ever see.
- Fun with Acronyms: Once Eipix takes over and changes the name of the organization you work for to Hidden Expedition League of Preservation, having a minor character say they "need HELP" shows up a lot.
- The Greys: The shortcut in Everest was apparently built by these guys.
- In Medias Res: Smithsonian Hope Diamond starts off with you and Sam imprisoned on a train. Once you escape, the story jumps back to how you wound up there.
- Everest starts off with what amounts to a tutorial level, but the level in question is one from late in the game.
- Lost Paradise: at the game's start, the player-character wakes up on a beach next to a wrecked speedboat, and has to pull together what happened.
- Limited Wardrobe: Sam and his green plaid shirts.
- Pixel Hunt: At one point in Uncharted Islands, you need to cut a string with a pair of scissors. If you don't position the correct part of the scissors over a specific (but unidentified) spot on the string, it won't cut — and there's no skip button on that puzzle.
- Put on a Bus: Sam in Lost Paradise.
- Really 700 Years Old: Just about everyone you encounter in Devil's Triangle/Uncharted Islands is this trope.
- Samus Is a Girl: Once Eipix takes over game development, it's made clear that the player-character is female. (Not surprising, since female protagonists are part of Eipix' house style.)
- Stupidity Is the Only Option: At one point in The Eternal Emperor, it is so freaking obvious that the player character's partner has been put under mind control. She remains completely clueless about this until mind-controlled Sam gets hold of the MacGuffin.
- Timed Mission: In Titanic, each "dive" (level) is timed and mis-clicks subtract from your available "air" (time). Everest tracks how much time you take as part of the whole "race three other groups" thing, but shows relative progress between the four teams instead of an actual timer. Later games in the series are untimed.
- Wire Dilemma: One of the minigames in Devil's Triangle is to cut the wires on a bomb in the correct order.