''Leather Goddesses of Phobos'' is an InteractiveFiction game written by SteveMeretzky and published by Creator/{{Infocom}} in 1986.

As the title suggests, it's a parody of sci-fi B-movies, which has you battling the eponymous Leather Goddesses as they prepare to invade Earth and enslave humanity. The packaging of the game includes several B-movie gimmicks, including a ThreeDComicBook and a scratch-and-sniff card with numbered areas to be sniffed at appropriate points in the game.

As the title might also suggest, the game contains quite a bit of sexual content; how much depended on the "Naughtiness" level, which could be set to Lewd, Suggestive, or Tame.

The game requires the player to indicate the sex of the player character at the beginning, and adjusts the other characters in the game accordingly, so that any character in whom the player character might take an... interest... is always of the opposite sex. (The exception being the Leather Goddesses, with whom female characters can make out in one scene.) It also affects the sex of the player's faithful sidekick: the male player character is assisted by the burly-but-dim Trent, while the female character is accompanied by the attractive-but-ditzy Tiffany.

A sequel, ''Leather Goddesses of Phobos 2: Gas Pump Girls Meet the Pulsating Inconvenience from Planet X!'', was released in 1992.

!!This game provides examples of:

* AdjustableCensorship: The game can be set from "Tame" to "Lewd".
* AliensInCardiff: The game opens in Upper Sandusky, Ohio.
* AttractiveBentSpecies: When the player is turned into a gorilla, the other gorilla in the cage with him/her suddenly seems a lot more good looking.
* BadassNormal: Parodied with Trent/Tiffany, who wrestles alien threats on a hostile planet. Though his/her tragic demise is a Running Gag, he/she keeps returning due to toughness, persistence and bizarre luck.
* BedsheetLadder: At one point you have to make one for Trent/Tiffany to climb down.
* UsefulNotes/{{Cleveland}}: Locations include a small area of Cleveland, which is compared (unfavorably) to the slime pits of Venus and sandstorms of Mars.
* ClueFromEd: The bundled comic book included several referring to (non-existent) earlier issues.
* CoitusEnsues: Essentially how many of the sex scenes are kicked off.
* CopyProtection: The {{feelies}} for the game included a comic book and a map, both of which contained information vital for getting through the game.
* DisneyDeath[=/=]DeathIsCheap: Played for laughs. Your faithful sidekick would occasionally get killed in the course of trying to solve some puzzle, with you mourning their loss. They'd show up again with some ridiculous DeusExMachina explanation within a few turns.
* DoorstopBaby: Leaving a baby on the doorstep of an orphanage lets you sneak inside the opened door to loot the place.
* EverythingsBetterWithMonkeys: At one point in the game, your character gets mindswapped with a monkey. In a cage. With an amorous monkey of the other sex.
* {{Feelies}}: The feelies for the game included a ThreeDComicBook (with glasses), a scratch-and-sniff card, and a map.
* HeelRealization: [[spoiler:Disarming Thorbast/Thorbala and then returning his/her sword causes him/her to realize that he/she is the bad guy.]]
* IdiosyncraticDifficultyLevels: The Naughtiness level, although strictly speaking it didn't actually affect the difficulty of the game at all, just the details of how certain events played out.
* MacGyvering: The climax of the game revolves around MacGyvering a device out of NoodleImplements to save the day.
* ManEatingPlant: A large, mobile Venus Fly Trap is one of the hazards on... wait for it... the planet Venus.
* TheMaze: A particularly nasty one requiring you to hop, clap, or say "Kweepa" every so many moves, and pretty much impossible to navigate without the bundled map. Players found this so annoying that a later version of the game included a cheat code allowing you to skip the maze entirely.
* MoonLogicPuzzle: The player is captured by aliens and thrown into a cell. The way to escape is [[spoiler:simply to open the door -- it's not locked]]. Many players were stuck for weeks on this point. Lampshaded in-game as well -- the other prisoner admits he/she never thought to try it.
** On Venus, the player is captured by a Mad Scientist and turned into a gorilla in a cage. The only way to escape this is to have previously left a chocolate bar in the cage (which is never even hinted at beforehand), and then eat it as the gorilla. This sugar rush somehow gives you the strength to bend the bars and escape.
* NoodleImplements: The components of the day-saving device include: A common household blender, six feet of rubber hose, a pair of cotton balls, an eighty-two degree angle, a headlight from a 1933 Ford, a white mouse, a photo of JeanHarlow (or Douglas Fairbanks), and a Cleveland phone book.
* PitTrap: Constructed to deal with the mobile Venus Fly Trap.
* RescueSex: At one point you rescue a kidnapped aristocrat; depending on what naughtiness level you're playing on, you may get an erotic encounter with your grateful rescuee.
* RiddleMeThis: Correctly answering the riddle of a sultan/ess wins you an hour with one of his/her harem.
* SchrodingersGun: The player character's sex is indeterminate for the first few moves of the game, then the player has to make a decision about whether to go to the ladies' room or the men's room. Whichever the player chooses retroactively becomes the correct answer.
* SpeakFriendAndEnter: The player is captured by aliens and thrown into a cell. The way to escape is [[spoiler:simply to open the door -- it's not locked]].
* StrappedToAnOperatingTable: At one point, the player is strapped to an exam table by a mad scientist and turned into a Gorilla. It's also possible to observe other experiments of the Leather Goddesses, but the game won't tell you what they are. Whether that is a SexyDiscretionShot or a GoryDiscretionShot is entirely up to the player's imagination.
* ThreeDComicBook: Included in the feelies.
* UnexplainedRecovery: Your faithful sidekick's running gag.
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