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.
Nahverkehr Dresden released on 9 September 2021. It spans the 55-kilometre line between Riesa and Dresden, and also included the 23-kilometre fast line which runs parallel to the main route. The 5-kilometre branch to Großenhain and 9-kilometre branch to Meißen Triebischtal are also included. The route includes the DB BR 442 'Talent 2', DB BR 143, DB BR 146.2, MRCE BR 185 and DB BR 363 as the primary trains, along with the fourth generation Doppelstockwagen coaches and cab car. The DB BR 101 DLC and DB BR 406 are layered on and includes intercity and ICE services that use the fast line. 2b1af7f3a8