This guide will explain which add-ons are available for which Train Sim World games and the acronym/shorthand name they are commonly referred to by.
| DLC Name | Type | TSW1 | TSW2 | TSW3 | Acronym |
| Amtrak Acela Express Route Add-On | Loco | No | No | Yes | Acela |
| Arosalinie: Chur - Arosa Route Add-On | Route | No | Yes | Yes | ARL |
| Bahnstrecke Bremen – Oldenburg Add-On | Route | No | No | Yes | BRO |
| Bakerloo Line Route | Route | No | Yes | Yes | BKL |
| Birmingham Cross-City Line: Lichfield - Bromsgrove & Redditch Route Add-On | Route | No | No | Yes | BCC |
| BNSF SD70ACe Loco Add-On | Loco | No | No | Yes | BNSF SD70ACe |
| BR Class 20 'Chopper' Loco Add-On | Loco | Yes | Yes | Yes | Class 20 |
| BR Class 31 Loco Add-On | Loco | Yes | Yes | Yes | Class 31 |
| BR Class 33 Loco Add-On | Loco | Yes | Yes | Yes | Class 33 |
| BR Class 52 'Western' Loco Add-On | Loco | Yes | Yes | Yes | Class 52 |
| BR Heavy Freight Pack Loco Add-On | Expansion | Yes | Yes | Yes | BR Heavy Freight |
| Cajon Pass: Barstow - San Bernardino Route Add-On | Route | No | No | Yes | CJP |
| Caltrain MP15DC Diesel Switcher Loco Add-On | Loco | Yes | Yes | Yes | MP15DC |
| Caltrain MP36PH-3C ‘Baby Bullet’ Loco Add-On | Loco | Yes | Yes | Yes | MP36PH-3C |
| Canadian National Oakville Subdivision: Hamilton - Oakville Route Add-On | Route | Yes | Yes | Yes | OSD |
| Cane Creek: Thompson - Potash Route Add-On | Route | No | Yes | Yes | CCB |
| Cathcart Circle Line: Glasgow - Newton & Neilston Route Add-On | Route | No | Yes | Yes | CCL |
| Clinchfield Railroad: Elkhorn - Dante Route Add-On | Route | No | Yes | Yes | CCR |
| CSX C40-8W Loco Add-On | Loco | No | Yes | Yes | C40-8W |
| DB BR 101 Loco Add-On | Loco | No | Yes | Yes | DB BR 101 |
| DB BR 155 Loco Add-On | Loco | Yes | Yes | Yes | DB BR 155 |
| DB BR 182 Loco Add-On | Loco | Yes | Yes | Yes | DB BR 182 |
| DB BR 187 Loco Add-On | Loco | No | Yes | Yes | DB BR 187 |
| DB BR 204 Loco Add-On | Loco | Yes | Yes | Yes | DB BR 204 |
| DB BR 363 Loco Add-On | Loco | No | Yes | Yes | DB BR 363 |
| DB BR 403 ICE 3 Railbow Loco Add-On | Loco | No | No | Yes | ICE3 Railbow |
| DB G6 Diesel Shunter Add-On | Loco | No | Yes | Yes | DB G6 |
| Diesel Legends of the Great Western Add-On | Expansion | No | Yes | Yes | Diesel Legends |
| Dispolok BR 182 Add-On | Loco | No | No | Yes | Dispolok BR 182 |
| East Coastway: Brighton - Eastbourne & Seaford Route Add-On | Route | Yes | Yes | Yes | ECW |
| Great Western Express Route Add-On | Route | Yes | Yes | Yes | GWE |
| Harlem Line: Grand Central Terminal - North White Plains Route Add-On | Route | No | Yes | Yes | HAR |
| Hauptstrecke Hamburg - Lübeck Route Add-On | Route | No | Yes | Yes | HML |
| Hauptstrecke München - Augsburg Route Add-On | Route | No | Yes | Yes | HMA |
| Hauptstrecke Rhein-Ruhr: Duisburg - Bochum Route Add-On | Route | Yes | Yes | Yes | HRR |
| Horseshoe Curve: Altoona - Johnstown & South Fork Route Add-On | Route | No | Yes | Yes | HSC |
| Island Line 2022: BR Class 484 EMU Add-On | Loco | No | Yes | Yes | Island Line |
| Isle Of Wight: Ryde - Shanklin Route Add-On | Route | No | Yes | Yes | IOW |
| LGV Méditerranée: Marseille - Avignon Route Add-On | Route | No | Yes | Yes | LGV |
| Linke Rheinstrecke: Mainz - Koblenz Add-On | Route | No | No | Yes | LFR |
| LIRR M3 EMU Loco Add-On | Loco | Yes | Yes | Yes | LIRR M3 |
| London Underground 1938 Stock EMU Loco Add-On | Loco | No | Yes | Yes | 1938 Stock |
| Long Island Rail Road: New York - Hicksville Route Add-On | Route | Yes | Yes | Yes | LIRR |
| Main Spessart Bahn: Aschaffenburg - Gemünden Route Add-On | Route | Yes | Yes | Yes | MSB |
| Midland Main Line: Leicester - Derby & Nottingham Route Add-On | Route | No | No | Yes | MML |
| New Journeys - CSX SD40 Add-On | Loco | No | No | Yes | NJ CSX SD40 |
| New Journeys - S-Bahn Köln BR 423 Add-On | Loco | No | No | Yes | NJ BR 423 |
| New Journeys - Silver 1972 Stock Add-On | Loco | No | No | Yes | NJ 1972 Stock |
| New Journeys Expansion | Expansion | No | Yes | No | EHP |
| Niddertalbahn: Bad Vilbel - Glauburg-Stockheim Route Add-On | Route | No | No | Yes | NID |
| Northeast Corridor: New York - Trenton Route Add-On | Route | No | No | Yes | NYT |
| Northern Trans-Pennine: Manchester - Leeds Route Add-On | Route | Yes | Yes | Yes | NTP |
| Peak Forest Railway: Ambergate - Chinley & Buxton Route Add-On | Route | No | No | Yes | PFR |
| Peninsula Corridor: San Francisco - San Jose Route Add-On | Route | Yes | Yes | Yes | SFJ |
| Rail Head Treatment Train Add-On | Loco | No | No | Yes | RHTT |
| Rail Operations Group BR Class 37/7 Loco Add-On | Loco | No | No | Yes | ROG Class 37 |
| Rapid Transit Route Add-On | Route | Yes | Yes | Yes | RT |
| RhB Anniversary Collection | Route | No | Yes | Yes | RhB Anniversary |
| Rhein-Ruhr Osten: Wuppertal - Hagen Route Add-On | Route | Yes | Yes | Yes | RRO |
| Ruhr-Sieg Nord: Hagen - Finnentrop Route Add-On | Route | Yes | Yes | Yes | RSN |
| Rush Hour - Boston Sprinter Add-On | Route | No | Yes | Yes | BPE |
| Rush Hour - London Commuter Route Add-On | Route | No | Yes | Yes | LBN |
| Rush Hour – Nahverkehr Dresden Route Add-On | Route | No | Yes | Yes | DRA |
| Sand Patch Grade Route Add-On | Route | Yes | Yes | Yes | SPG |
| Santa Fe F7 Add-On | Loco | No | No | Yes | Santa Fe F7 |
| S-Bahn Zentralschweiz: Luzern - Sursee Route Add-On | Route | No | Yes | Yes | LZN |
| Schnellfahrstrecke Kassel - Würzburg Route Add-On | Route | No | No | Yes | KWG |
| Schnellfahrstrecke Koln-Aachen Route | Route | No | Yes | Yes | SKA |
| ScotRail Express: Edinburgh - Glasgow Route Add-On | Route | No | No | Yes | EDN |
| Sherman Hill: Cheyenne - Laramie Route Add-On | Route | No | Yes | Yes | SMH |
| Southeastern BR Class 465 EMU Add-On | Loco | No | Yes | Yes | Class 465 |
| Southeastern High Speed: London St Pancras - Faversham Route Add-On | Route | No | Yes | No | SEH |
| Southeastern Highspeed: London St Pancras – Ashford Intl & Faversham Route Add-On | Route | No | No | Yes | SEH |
| Southern BR Class 313 EMU Add-On | Loco | No | Yes | Yes | Class 313 |
| Spirit of Steam: Liverpool Lime Street - Crewe Route Add-On | Route | No | Yes | Yes | SoS |
| Tees Valley Line: Darlington – Saltburn-by-the-Sea Route Add-On | Route | Yes | Yes | Yes | TVL |
| Tharandter Rampe: Dresden - Chemnitz Route Add-On | Route | No | Yes | Yes | DCZ |
| The Holiday Express - Runaway Elf Add-On | Route | No | No | Yes | HDX |
| Union Pacific Heritage Collection Route Add-On | Loco | No | No | Yes | UPHeritage |
| West Cornwall Local: Penzance - St Austell & St Ives Route Add-On | Route | No | Yes | Yes | WCL |
| West Cornwall Steam Railtour Add-On | Expansion | No | No | Yes | WCS |
| West Somerset Railway Route Add-On | Route | Yes | Yes | Yes | WSR |