History VideoGame / TransportTycoon

The FanRemake, ''[[http://openttd.org OpenTTD]]'', is derived from ''Transport Tycoon Deluxe''. Originally a set of patches called ''[=TTDPatch=]'', it was created to allow enthusiasts to include other vehicles, especially historical trains and the like, and eventually grew to add all sorts of features. It supported a plug-in architecture, so users could download add-ons they were interested in. Eventually ''[=TTDPatch=]'' grew much larger than the original game, so some developers decided to replace the remaining bits, allowing the now much-more-elaborate game to be played by anyone. The replacement code was completed in 2004, and an effort begun to replace the art and music, which finished in 2010. ''[=OpenTTD=]'' is [[UsefulNotes/FreeLibreOpenSourceSoftware free/open source]], and works on a wide variety of operating systems. ''[=TTDPatch=]'' was maintained in parallel for some time, however ''[=OpenTTD=]'' eventually surpassed it in nearly every way, and the majority of the huge library of plugins and add-ons only works with ''[=OpenTTD=]''.

* NoSell: If a train meets a truck/bus/tram at a road crossing at the same time, said vehicle will promptly explode into a fireball while the trail will continue undamaged as if nothing has happened.

* CurbStompBattle: If an AI competitor is using road vehicles, it's possible to set up a rail line across the road and order a locomotive to "dispose" of AI vehicles. This leaves your reputation and the locomotive completely unharmed.

The FanRemake, ''[[http://openttd.org OpenTTD]]'', is derived from ''Transport Tycoon Deluxe''. Originally a set of patches called ''[=TTDPatch=]'', it was created to allow enthusiasts to include other vehicles, especially historical trains and the like, and eventually grew to add all sorts of features. It supported a plug-in architecture, so users could download add-ons they were interested in. Eventually ''[=TTDPatch=]'' grew much larger than the original game, so some developers decided to replace the remaining bits, allowing the now much-more-elaborate game to be played by anyone. The replacement code was completed in 2004, and an effort begun to replace the art and music, which finished in 2010. ''[=OpenTTD=]'' is free/open source, and works on a wide variety of operating systems. ''[=TTDPatch=]'' was maintained in parallel for some time, however ''[=OpenTTD=]'' eventually surpassed it in nearly every way, and the majority of the huge library of plugins and add-ons only works with ''[=OpenTTD=]''.

* ClassicVideoGameScrewYous: Industries can suddenly go out of business while towns can refuse your services. This is ''largely'' due to the player's performance, but there's always a chance of it happening no matter how well you do.

''Train Fever'' was an attempt at a modernised SpiritualSequel by Urban Game], however it had a myriad of limitations and bugs. Most of them were fortunately fixed in ''Transport Fever'', a SurprisinglyImprovedSequel launched in 2016 with backwards compatibility for most ''Train Fever'' mods (either natively or using a mod that autotranslates the code so it to be usable with ''Transport Fever'').

** AI companies never get affected by disasters. [=UFOs=] and zepplins never target them and their infrastructure doesn't get destroyed by coal mine subsidences or UFO bombers.

** The custom AIs available for ''[=OpenTTD=]'' are much less insane, even the one that tries to emulate the "classic" AI.

* [[ColourCodedArmies Colour Coded Companies]]: All companies have a single, associated colour. ''[=OpenTTD=]'' allow you to violate this, letting you choose different colours for different vehicles (e. g. different colours for steam, diesel, and electric locomotives).

* IWantMyJetpack: The game greatly overestimates the prominence of monorail and maglev technology in what is now the modern day. While both exist (and have already existed for decades), not many governments or transportation companies are using either as a first option, with monorails being [[AwesomeButImpractical highly situational]][[note]]As a mode of transit; they see [[ThisLooksLikeAJobForAquaman much more efficient use]] in material handling.[[/note]] and maglevs being much too costly to build. They certainly aren't rendering conventional rail obsolete, as seen in the game's dwindling selection of rail engines.

* IWantMyJetpack: The game greatly overestimates the prominence of monorail and maglev technology in what is now the modern day. While both exist (and have already existed for decades), not many governments or transportation companies are using either as a first option, with monorails being [[AwesomeButImpractical highly situational]] and maglevs being much too costly to build. They certainly aren't rendering conventional rail obsolete, as seen in the game's dwindling selection of rail engines.

* {{Nerf}}: The Iron Horse [=NewGRF=] multiplies the expenses of rail transit from its vanilla counterpart, not only by increasing the running costs of engines but adding running costs to individual wagons. While still DifficultButAwesome, rail no longer has a clear advantage in cost-efficiency over other modes of transit, and players using this [=NewGRF=] now have to consider whether trains are even appropriate for a given corridor.

* MightyGlacier: The only steam engine available in the "Desert" and "Arctic" climates, the Wills 2-8-0, is slightly stronger and heavier than the Chaney Jubilee from the "Temperate" climate, but is also significantly slower. Presumably, this is because the Wills 2-8-0 was built to handle harsh climate conditions, which is also why it isn't available until a decade after the Chaney Jubilee would be.

* MightyGlacier: The only steam engine available in the "Desert" and "Arctic" climates, the Wills 2-8-0, is slightly stronger and heavier than the Chaney Jubilee from the "Temperate" climate, but is also significantly slower. Presumably this is because the Wills 2-8-0 was built to handle harsh climate conditions, which is also why it isn't available until a decade after the Chaney Jubilee would be.

** Ro-ro stations are significantly more complicated to build than terminus stations, as they not only require tracks to be built from both ends of the station, but that trains can only go one way. This limits the coverage stations can get from each end, and forces players to get creative in how to connect the ro-ro lines with the main track. A well-designed ro-ro station can easily outmatch a terminus station in efficiency, as the one-way tracks are less susceptible to congestion than if trains were entering and exiting the same points.

* SkillGateCharacter: Road vehicles are the most beginner-friendly transit mode in the game, as they are not only cheap in both capital and running costs, but they can use the roads provided by cities, as well as service any industry. However, as players become more experienced in the game, they'll notice that they lose out in many areas to trains. Not only do trucks have lower capacities than rail cars, but they each have their own individual running costs as opposed to one per rail engine, meaning they lose out on cost-effectiveness for more productive industries. Road stations also have a smaller coverage radius than that of rail, and [[DiagonalSpeedBoost roads cannot go diagonally]]. While roads can still be a viable choice for main mode of transit (especially in the Desert and Arctic maps, where train selections are more limited), more experienced players tend to delegate road vehicles to more niche roles such as feeder networks or inner-city transit.

* StarterEquipment: The very first vehicle available in the "Temperate" climate is the Kirby Paul Tank, a steam engine that's cheaper but slower and weaker thank its successors in the following decade.

* MagikarpPower: Trams, specifically the Generic Trams Set, when starting at the earliest date. Tram networks are expensive and difficult to build, unlike bus networks which can use the roads provided by cities. The earliest trams are not much better than buses, and still lose out on trains in capacity and cost-effectiveness. Over the course of the century, trams improve to the point where they substantially outpace buses and even trains in the aforementioned areas, losing out only in speed and (still) flexibility. Furthermore, the game environment changes increasingly in their favor, as metropolitan areas grow and require transit options that can reach city centers. By the time the final trams are available, they'll become the best option for local passenger transit.

The FanRemake, ''[[http://openttd.org OpenTTD]]'', is derived from ''Transport Tycoon Deluxe''. Originally a set of patches called ''[=TTDPatch=]'', it was created to allow enthusiasts to include other vehicles, especially historical trains and the like, and eventually grew to add all sorts of features. It supported a plug-in architecture, so users could download add-ons they were interested in. Eventually ''[=TTDPatch=]'' grew much larger than the original game, so some developers decided to replace the remaining bits, allowing the now much-more-elaborate game to be played by anyone. The replacement code was completed in 2004, and an effort begun to replace the art and music, which finished in 2010. ''[=OpenTTD=]'' is free/open source, and works on a wide variety of operating systems. ''[=TTDPatch=]'' was maintained in parallel for some time, however OpenTTD eventually surpassed it in nearly every way, and the majority of the huge library of plugins and add-ons only works with ''[=OpenTTD=]''.

There is also a FanSequel of sorts, called ''{{VideoGame/Simutrans}}'', but it's an indie game only InspiredBy and not related or legally connected to the ''Transport Tycoon'' series.

''VideoGame/TrainFever'' was an attempt at a modernised SpiritualSequel by [[Creator/UrbanGames Urban Games]], however it had a myriad of limitations and bugs. Most of them were fortunately fixed in ''VideoGame/TransportFever'', a SurprisinglyImprovedSequel launched in 2016 with backwards compatibility for most ''Train Fever'' mods (either natively or using a mod that autotranslates the code so it to be usable with ''Transport Fever'').

* GenteelInterbellumSetting: The original starts in 1930. ''Deluxe'' has [[TheFifties 1950]] as the earliest date. ''[=OpenTTD=]'' can start even earlier -- given [[https://wiki.openttd.org/Extended_Generic_Road_Vehicle_and_Tram_Set the right [=NewGRFs=]]], you can even start in ''[[UsefulNotes/TheGoldenAgeOfPiracy 1700]]'', complete with horse-drawn cargo carriages and sailing ships.

* ArtisticLicenseEngineering: Monorails function exactly like conventional and electric rail, albeit as its own separate track type with unique engines. In real life, monorails are substantially different in how they're constructed and how they operate, due to their distinct track design: switches are more difficult to implement, grade crossings are impossible, and tracks have to be elevated above the ground. This is why most real-life monorails have simple layouts (i.e. a loop, shuttle), and why they're constructed above-grade.

** Monorails are depicted as a futuristic upgrade on railroads that can haul just about everything over just about any distance. In RealLife, there are good reasons why they've only ever been used in theme parks or as fancy urban transit. Realistic custom train packs do reflect their limited real life use, though the fact that converting an entire railroad network to monorail then to maglev is a ''huge'' pain in the ass probably helps too.

* LateCharacterSyndrome: The SH '8P' is superior to all steam engines before it, but isn't available until right before the earliest diesel engines are also available, which can deliver a similar performance at better running costs. The main incentive for using the SH '8P' - apart from [[RailEnthusiast sentiment]] - is as a layover until these more cost-efficient diesel engines become available.