History VideoGame / CthulhuMythosTheSleepingGirlOfTheMiasmaSea

* BonusBoss: Brad Valentine. [[GuideDangIt Finding him]] requires getting every ending, reading a book that appears just before the final boss, and backtracking all the way to the pentagram in the Annex. And that's the ''easy'' part.

* GuideDangIt: Because of limited inventory management and the lack of an overhead map, you will have to mentally keep track of where you're going and where you placed things, or otherwise take notes. Also, what items you may be able to get all depends on your party and their skills. Without a guide, simply playing the game blind may result in players missing out on a lot of items or even other endings.

* FiveManBand: When you encounter Godo (and Mamoru right after), your group becomes this:
** TheLeader: You
** TheLancer: Daiki
** TheBigGuy: Yurie
** TheSmartGuy: Godo (and Mamoru, who is more of a [[SixthRanger Sixth Ranger]])
** TheChick: Sachi

* EarlyGameHell: Much like with ''VideoGame/SweetHome'', the combination of limited supplies and random encounters can make the game rather difficult from the beginning. And unlike with the former, characters here are not guaranteed to attack first, as their Dexterity and Size attributes determine that. Thankfully, NewGamePlus allows players to start the game over while carrying their levels over from previous playthroughs, making the early game much easier.

* MagicIsEvil: Subverted. Much like ''Call of Cthulhu RPG'', characters can eventually access magic spells through spellbooks they find in the mansion and its grounds. However, it's implied that the magic you do access came at a great cost to… someone who used to work there. In fact, the book you find explaining magic in the game is found at the same site where a serial killer murdered several women, with a bloody magic circle located right in front of its bookshelf. Mechanically, spells cost MP to use, not sanity. But casting magic beyond one's MP capacity will drop that character into a coma they cannot recover from unless they use a magic stone to restore their points. And since those items are extremely [[PowerAtAPrice rare…]]

* NonUniformUniform: Daiki and Yurie wear there uniforms differently from the Protagonist and Sachi. Daiki has his tie loosened and his collar open, while Yuire's collar is open much further and doesn't have a tie at all.

* *NonUniformUniform: Daiki and Yurie wear there uniforms differently from the Protagonist and Sachi. Daiki has his tie loosened and his collar open, while Yuire's collar is open much further and doesn't have a tie at all.

* TheShrink: Mamoru is this. They start off with Mental Recovery from the beginning, allowing them to restore a character from insanity at a cost of five points of their own sanity. They can even do this during battles.

You play with a custom character and their friends who enter an abandoned mansion for a "test of courage." They soon find they're not alone and have to confront everything from enlarged insects and ghosts, to Lovecraftian monsters like zombies and Yuggothians. To make matters worse, they encounter a creepy girl who chases them around the place after transforming into a horrible monster. With their companions, it's the player's job to overcome the terror of the mansion and unravel its secrets, all while relying on what few resources they can find to maintain their health and sanity.

* HauntedHouse