Payware:
ÖBB 1144
https://store.steampowered.com/app/861885/Train_Simulator_BB_1144__CityShuttle_Wiesel_Loco_AddOn/

AP-Wetter
https://www.armstrongpowerhouse.com/index.php?route=product/product&product_id=197

TTB Szenariopakete 1-3
https://www.trainteamberlin-shop.de/rw-szenariopacks/

3DZUG KI-Pack
https://www.3dzug.de/product_info.php?info=p276_verkehrspack-gueterwagen.html

RWA Taurus
https://www.justtrains.net/product/rwa-railjet-advanced

3DZUG Nightjet (Nicht zwingend, nur ein Zug)
https://www.3dzug.de/product_info.php?info=p433_oebb-nightjet.html

ÖBB 5022
https://www.rsslo.com/product/desiro-obb-5022br-642/

ÖBB 4023
https://store.steampowered.com/app/376951/Train_Simulator_BB_4023_Talent_EMU_AddOn/

Freeware:
Cityshuttle Wendezug
https://railworks-austria.at/index.php/downloads/wagen/download/12-personenwagen/161-oebb-cityshuttle-wagen

ÖBB 8073
https://railworks-austria.at/index.php/downloads/wagen/download/12-personenwagen/313-oebb-cityshuttle-steuerwagen-8073

ER 20 + Repaints
https://rail-sim.de/forum/wsif/index.php/Entry/1240-Siemens-ER20-G%C3%BCterwagen-v-2/
https://rail-sim.de/forum/wsif/index.php/Entry/1238-ER20-Repaint-Pack-01-v-1/