| AIAccounting | Class that keeps track of the costs, so you can request how much a block of commands did cost in total |
| AIAirport | Class that handles all airport related functions |
| AIBase | Class that handles some basic functions |
| AIBaseStation | Base class for stations and waypoints |
| AIBridge | Class that handles all bridge related functions |
| AIBridgeList | Create a list of bridges types |
| AIBridgeList_Length | Create a list of bridges types that can be built on a specific length |
| AICargo | Class that handles all cargo related functions |
| AICargoList | Creates a list of cargoes that can be produced in the current game |
| AICargoList_IndustryAccepting | Creates a list of cargoes that the given industry accepts |
| AICargoList_IndustryProducing | Creates a list of cargoes that the given industry can produce |
| AICargoList_StationAccepting | Creates a list of cargoes that the given station accepts |
| AICompany | Class that handles all company related functions |
| AIController | The Controller, the class each AI should extend |
| AIDate | Class that handles all date related (calculation) functions |
| AIDepotList | Creates a list of the locations of the depots (and hangars) of which you are the owner |
| AIEngine | Class that handles all engine related functions |
| AIEngineList | Create a list of engines based on a vehicle type |
| AIError | Class that handles all error related functions |
| AIEvent | Class that handles all event related functions |
| AIEventAircraftDestTooFar | Event AircraftDestTooFar, indicating the next destination of an aircraft is too far away |
| AIEventCompanyAskMerger | Event Company Ask Merger, indicating a company can be bought (cheaply) by you |
| AIEventCompanyBankrupt | Event Company Bankrupt, indicating a company has gone bankrupt |
| AIEventCompanyInTrouble | Event Company In Trouble, indicating a company is in trouble and might go bankrupt soon |
| AIEventCompanyMerger | Event Company Merger, indicating a company has been bought by another company |
| AIEventCompanyNew | Event Company New, indicating a new company has been created |
| AIEventCompanyTown | Base class for events involving a town and a company |
| AIEventController | Class that handles all event related functions |
| AIEventDisasterZeppelinerCleared | Event Disaster Zeppeliner Cleared, indicating a previously crashed zeppeliner has been removed, and the airport is operating again |
| AIEventDisasterZeppelinerCrashed | Event Disaster Zeppeliner Crashed, indicating a zeppeliner has crashed on an airport and is blocking the runway |
| AIEventEngineAvailable | Event Engine Available, indicating a new engine is available |
| AIEventEnginePreview | Event Engine Preview, indicating a manufacturer offer you to test a new engine |
| AIEventExclusiveTransportRights | Event Exclusive Transport Rights, indicating that company bought exclusive transport rights in a town |
| AIEventIndustryClose | Event Industry Close, indicating an industry is going to be closed |
| AIEventIndustryOpen | Event Industry Open, indicating a new industry has been created |
| AIEventRoadReconstruction | Event Road Reconstruction, indicating that company triggered road reconstructions in a town |
| AIEventStationFirstVehicle | Event Station First Vehicle, indicating a station has been visited by a vehicle for the first time |
| AIEventSubsidyAwarded | Event Subsidy Awarded, indicating a subsidy is awarded to some company |
| AIEventSubsidyExpired | Event Subsidy Expired, indicating a route that was once subsidized no longer is |
| AIEventSubsidyOffer | Event Subsidy Offered, indicating someone offered a subsidy |
| AIEventSubsidyOfferExpired | Event Subsidy Offer Expired, indicating a subsidy will no longer be awarded |
| AIEventTownFounded | Event Town Founded, indicating a new town has been created |
| AIEventVehicleCrashed | Event Vehicle Crash, indicating a vehicle of yours is crashed |
| AIEventVehicleLost | Event Vehicle Lost, indicating a vehicle can't find its way to its destination |
| AIEventVehicleUnprofitable | Event Vehicle Unprofitable, indicating a vehicle lost money last year |
| AIEventVehicleWaitingInDepot | Event VehicleWaitingInDepot, indicating a vehicle has arrived a depot and is now waiting there |
| AIExecMode | Class to switch current mode to Execute Mode |
| AIGameSettings | Class that handles all game settings related functions |
| AIGroup | Class that handles all group related functions |
| AIGroupList | Creates a list of groups of which you are the owner |
| AIIndustry | Class that handles all industry related functions |
| AIIndustryList | Creates a list of industries that are currently on the map |
| AIIndustryList_CargoAccepting | Creates a list of industries that accepts a given cargo |
| AIIndustryList_CargoProducing | Creates a list of industries that can produce a given cargo |
| AIIndustryType | Class that handles all industry-type related functions |
| AIIndustryTypeList | Creates a list of valid industry types |
| AIInfo | 'Abstract' class of the AIs use to register themselves |
| AIInfrastructure | Class that handles all company infrastructure related functions |
| AIList | Class that creates a list which can keep item/value pairs, which you can walk |
| AILog | Class that handles all log related functions |
| AIMap | Class that handles all map related functions |
| AIMarine | Class that handles all marine related functions |
| AIOrder | Class that handles all order related functions |
| AIRail | Class that handles all rail related functions |
| AIRailTypeList | Creates a list of all available railtypes |
| AIRoad | Class that handles all road related functions |
| AISign | Class that handles all sign related functions |
| AISignList | Create a list of signs your company has created |
| AIStation | Class that handles all station related functions |
| AIStationList | Creates a list of stations of which you are the owner |
| AIStationList_Cargo | Creates a list of stations associated with cargo at a station |
| AIStationList_CargoPlanned | Creates a list of stations associated with cargo planned to pass a station |
| AIStationList_CargoPlannedByFrom | Creates a list of origin stations of cargo planned to pass a station, with the monthly amounts of cargo planned for each of those origin stations as values |
| AIStationList_CargoPlannedByVia | Creates a list of next hops of cargo planned to pass a station, with the monthly amounts of cargo planned for each of those next hops as values |
| AIStationList_CargoPlannedFromByVia | Creates a list of next hops of cargo planned to pass a station and originating from another station, with the monthly amounts of cargo planned for each of those next hops as values |
| AIStationList_CargoPlannedViaByFrom | Creates a list of origin stations of cargo planned to pass a station going via another station, with the monthly amounts of cargo planned for each of those origin stations as values |
| AIStationList_CargoWaiting | Creates a list of stations associated with cargo waiting at a station |
| AIStationList_CargoWaitingByFrom | Creates a list of origin stations of waiting cargo at a station, with the amounts of cargo waiting from each of those origin stations as values |
| AIStationList_CargoWaitingByVia | Creates a list of next hops of waiting cargo at a station, with the amounts of cargo waiting for each of those next hops as values |
| AIStationList_CargoWaitingFromByVia | Creates a list of next hops of waiting cargo from a specific station at another station, with the amounts of cargo waiting for each of those next hops as values |
| AIStationList_CargoWaitingViaByFrom | Creates a list of origin stations of cargo waiting at a station for a transfer via another station, with the amounts of cargo waiting from each of those origin stations as values |
| AIStationList_Vehicle | Creates a list of stations which the vehicle has in its orders |
| AISubsidy | Class that handles all subsidy related functions |
| AISubsidyList | Creates a list of all current subsidies |
| AITestMode | Class to switch current mode to Test Mode |
| AITile | Class that handles all tile related functions |
| AITileList | Creates an empty list, in which you can add tiles |
| AITileList_IndustryAccepting | Creates a list of tiles that will accept cargo for the given industry |
| AITileList_IndustryProducing | Creates a list of tiles which the industry checks to see if a station is there to receive cargo produced by this industry |
| AITileList_StationType | Creates a list of tiles which have the requested StationType of the StationID |
| AITown | Class that handles all town related functions |
| AITownEffectList | Creates a list of all TownEffects known in the game |
| AITownList | Creates a list of towns that are currently on the map |
| AITunnel | Class that handles all tunnel related functions |
| AIVehicle | Class that handles all vehicle related functions |
| AIVehicleList | Creates a list of vehicles of which you are the owner |
| AIVehicleList_DefaultGroup | Creates a list of vehicles that are in the default group |
| AIVehicleList_Depot | Creates a list of vehicles that have orders to a given depot |
| AIVehicleList_Group | Creates a list of vehicles that are in a group |
| AIVehicleList_SharedOrders | Creates a list of vehicles that share orders |
| AIVehicleList_Station | Creates a list of vehicles that have orders to a given station |
| AIWaypoint | Class that handles all waypoint related functions |
| AIWaypointList | Creates a list of waypoints of which you are the owner |
| AIWaypointList_Vehicle | Creates a list of waypoints which the vehicle has in its orders |
