The Preserved Collection allows players to import their previously owned Train Sim World and Train Sim World 2020 bundled routes and DLC into the new game. This means players can continue using them without the need to pay for them again. Dovetail Games announced the game would be delayed on 16 July, with a rescheduled release date of 20 August, from the original 6 August. This was to allow them to make \"Preserved Collection\" add-ons compatible with their new Scenario Designer. They confirmed that content from this category will not be compatible with their new Livery Designer, due to a change in the way they develop trains, although such compatibility might be provided in a future upgrade (this has since been confirmed; Livery Designer compatibility for East Coastway was included in a February 2021 patch, with more routes to follow). They also announced within one of their Community Q&A livestreams that their Northeast Corridor route add-on, as well as their Amtrak SW1000R and CSX GP40-2 loco addons were not going to be part of the \"Preserved Collection\" due to technical issues.
Train Sim World 2 features a livery editor and a scenario editor, with further plans on adding features to the current toolset. While previously stating that trains in the Preserved Collection would not be compatible with the livery editor, Dovetail Games announced on their 10 November 2020 roadmap that compatibility was in production.
A freeware multi-cylinder version of Lotus Engine Simulation is available to download and run without the need of a license file. This replaces the previous freeware version that was limited to single cylinder models only (updated Jan 2020). 1e1e36bf2d