Here are the data structures with brief descriptions:

CArtifact	Represents the entity initialised from a artifactClass
CBaseStats	Holds the base stats for a fighterClass
CBoss	Represents the entity initialised from a bossClass
CBossBaseStats	Holds the base stats for a bossClass
CChest	Represents the entity initialised from a chestClass
CConsumable	Holds a certain qty of a consumableClass
CcountStats	Holds the lifetime stats of the player
CEnemy	Represents the entity initialised from a enemyClass
CEnemyBaseStats	Holds the base stats for a enemyClass
CEquip	Represents the entity initialised from a equipClass
CEquipslot	Represents the entity containing an Equip instance
CFighter	Represents the entity initialised from a fighterClass
CFloor	Represents the entity initialised from a floorClass
CFoeParty	Represents the entity initialised from a foePartyClass
CFoePartyBaseStats	Holds the base stats for a foePartyClass
CGameOptions	Holds options useful for user runtime preferences
CGamestate	Holds arguments for a game
CGui_Button
CGui_State
CGui_Theme
CHLPD_DirectionalKeys	Holds a set of HLPD_Key to use for cardinal direction movement
CHLPD_Key	Holds info about a keybind for the game
CloadInfo	Contains loaded values to pass to initRoom()
CNotification	Holds text for a notification
CPath	Holds the state of game progression
CPerk	Represents the entity initialised from a perkClass
CRoadfork	Represents the entity initialised from a roadforkClass
CRoom	Represents the entity initialised from a roomClass
CSaveHeader	Save header
CSaveslot	Holds arguments for a saveslot
CSerArtifact	Serialized Artifact
CSerBoss	Serialized Boss
CSerChest	Serialized Chest
CSerConsumable	Serialized Consumable
CSerCountstats	Serialized countStats
CSerEnemy	Serialized Enemy
CSerEquip	Serialized Equip
CSerEquipslot	Serialized Equipslot
CSerFighter	Serialized Fighter
CSerFloor	Serialized Floor
CSerFoeParty	Serialized FoeParty
CSerGameOptions	Serialized GameOptions
CSerGamestate	Serialized Gamestate
CSerPath	Serialized SerPath
CSerPerk	Serialized Perk
CSerRoadfork	Serialized Roadfork
CSerRoom	Serialized Room
CSerSaveHeader	Serialized save header
CSerSaveslot	Serialized Saveslot
CSerShop	Serialized Shop
CSerSkillslot	Serialized Skillslot
CSerSpecialslot	Serialized Specialslot
CSerTreasure	Serialized Treasure
CSerTurncounter	Serialized Turncounter
CSerWincon	Serialized Wincon
CShop	Represents a shop instance
CSkillslot	Holds state for a skillType
CSpecialslot	Holds state for a Fighter specials
CTreasure	Represents the entity initialised from a treasureClass
CTurncounter	Represents the entity initialised from a CounterType
CturnOP_args	Holds arguments for a turnOption_OP
CWincon	Defines the entity initialised from a winconClass