### - a -

- a : Colour
- abbrev : CargoSpec
- abort : GenWorldInfo
- abortp : GenWorldInfo
- acache : Aircraft
- acceleration_type : RailtypeInfo
- acceptance : IndustryTileSpec
- accepts_cargo : Industry , IndustrySpec , IndustryTileSpec
- action : SaveLoadParams
- active : GenWorldInfo
- add_accepted_cargo_proc : TileTypeProcs
- add_produced_cargo_proc : TileTypeProcs
- addr : IConsoleVar
- address : NetworkGameList , SaveLoad
- adjacent_stations : StationSettings
- advanced : SelectCompanyManagerFaceWindow
- advanced_vehicle_list : GUISettings
- age : NewsTypeData
- ai : GameSettings
- ai_config : GameSettings
- ai_disable_veh_aircraft : AISettings
- ai_disable_veh_roadveh : AISettings
- ai_disable_veh_ship : AISettings
- ai_disable_veh_train : AISettings
- ai_in_multiplayer : AISettings
- ai_max_opcode_till_suspend : AISettings
- airport_flags : Station
- airport_tile : Station
- alloc_cache : Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tcache, Tzero >
- allow_do_command : AIStorage
- allow_shares : EconomySettings
- allow_town_roads : EconomySettings
- always_accepted : Station
- always_build_infrastructure : GUISettings
- amount : CargoArray , CargoSummaryItem
- anim_next : IndustryTileSpec
- anim_production : IndustryTileSpec
- anim_state : IndustryTileSpec
- animate_cur : CursorVars
- animate_list : CursorVars
- animate_timeout : CursorVars
- animation_info : IndustryTileSpec , AirportTileSpec
- animation_special_flags : IndustryTileSpec
- animation_speed : AirportTileSpec , IndustryTileSpec
- animation_triggers : IndustryTileSpec
- appear_creation : IndustrySpec
- appear_ingame : IndustrySpec
- area : SelectStationWindow< T >
- arg : OTTDThreadStartupMessage
- array : CargoSpec
- arrival : TimetableArrivalDeparture
- at : LoggedAction
- auto_euro : GUISettings
- auto_rail : RailtypeInfo
- autorail : RailtypeInfo
- autosave : GUISettings
- autosave_on_exit : GUISettings
- autoscroll : GUISettings
- autoslope : ConstructionSettings
- avail_year : BridgeSpec
- available_sets : BaseMedia< Tbase_set >
- awarded : Subsidy