Map General:

Vegetation increase - Steam Workshop Link - Warning this puts a massive strain on your computer the more you add.
Town Building Style mod - Steam Workshop Link - Modifies building end dates to give a more real feel.

Rail:

UK Semaphore Signal - Steam Workshop Link
UK Semaphone Signal (3 aspect) - Steam Workshop Link
UK Level Crossings (older) - Steam Workshop Link
UK Level Crossings - Steam Workshop Link - Not sure if this one is working or not.
Complex Train Stations - Steam Workshop Link
Curved Train Stations - Steam Workshop Link
Flying Junctions - Steam Workshop Link
More Flying Junctions - Steam Workshop Link
Kanshis Modern Stations - Steam Workshop Link
Sloped Train Stations - Steam Workshop Link
Liege-Guillemins Stations - Steam Workshop Link - Probably won't use in this playthrough.
Dresden Station - Steam Workshop Link - Probably won't use in this playthrough.
Open cut station and retaining wall - Steam Workshop Link
Left side signals - Steam Workshop Link - Probably won't use in this playthrough
Track design patterns - Steam Workshop Link
Underground Stations - Steam Workshop Link
Rail Depot Long - Steam Workshop Link
Track Balast - Steam Workshop Link
Bumper as Depot - Steam Workshop Link
Cargo station through rails - Steam Workshop Link
Passenger station through rails - Steam Workshop Link
Pass station witout outer - Steam Workshop Link
Engine Shed (Depot) - Steam Workshop Link
UK Style 3rd Rail and AWS - Steam Workshop Link
UK 2 & 3 Aspect signals + Shunt - Steam Workshop Link

Locomotives/Trainsets:

GWR 69 - Steam Workshop Link
GWR 1076 - Steam Workshop Link
GWR 2301 - Steam Workshop Link
GWR 2800 - Steam Workshop Link
GWR 3200,3252,3200 - Steam Workshop Link
GWR 3700 - Steam Workshop Link
GWR 4000 - Steam Workshop Link
GWR 5700 - Steam Workshop Link
GWR 7200 - Steam Workshop Link
NE A1 - Steam Workshop Link
LMS Fowler Class 4F - Steam Workshop Link - Amazing middle ground loco for this game, great sounds as well.
BR Class 7 - Steam Workshop Link
BR Class 9F - Steam Workshop Link
BR Class 101 - Steam Workshop Link
BR Class 08 - Steam Workshop Link - Just added.
BR Class 09 - Steam Workshop Link
BR Class 11 - Steam Workshop Link - Just added.
BR Class 37 - Steam Workshop Link
BR Class 47 - Steam Workshop Link
BR Class 43 HST - Steam Workshop Link
BR Class 43 HST Liveries - Steam Workshop Link - Just added.
BR Class 86 - Steam Workshop Link
BR Class 150 - Steam Workshop Link - Might crash if added so will maybe save for another time.
Docklands Light Railway - Steam Workshop Link
Siemens C1 Inspiro - Steam Workshop Link - Just added.
Siemens C2 Inspiro - Steam Workshop Link

Fake Loco - Steam Workshop Link - Decoration only.

NS SGM Sprinter - Steam Workshop Link
Australian National Rail NR Class - Steam Workshop Link
kkStB 280 / 380 - Steam Workshop Link - Won't use in this playthrough
DV12 Series 2500 - Steam Workshop Link
JR E205 - Steam Workshop Link
JR E233 - Steam Workshop Link
JR E235 - Steam Workshop Link
GySEV 5047 / 5147 - Steam Workshop Link

Waggons & Coaches:

GWR Cattle waggons - Steam Workshop Link
GWR Short Coaches - Steam Workshop Link
GWR Medium Coaches - Steam Workshop Link
GWR Large Coaches - Steam Workshop Link
GWR V22 Waggons - Steam Workshop Link
BR Mk 1 Coaches - Steam Workshop Link
British Tank Waggons - Steam Workshop Link
GWR Open Waggons - Steam Workshop Link
GWR Waggon V6 - Steam Workshop Link
GWR Toad Brake Van - Steam Workshop Link
GWR Bolster Wagons - Steam Workshop Link
BR Mk 2 Coaches - Steam Workshop Link
BR HTO Hopper - Steam Workshop Link
Classes for stock carriges - Steam Workshop Link
Einheitswagen 4 der SBB (grau) - Steam Workshop Link
Einheitswagen 4 der SBB (gruen) - Steam Workshop Link

Donnerbuechse class 28 - 29 - Steam Workshop Link - Won't use in this playthrough
kkStB Express cars 2-axle la - Steam Workshop Link - Won't use in this playthrough
kkStB Express cars 2-axle la addon - Steam Workshop Link - Won't use in this playthrough`
kkStB Express cars 4-axle lb - Steam Workshop Link - Won't use in this playthrough
DB Cargo Flatcar 710 Steel - Steam Workshop Link
DB Cargo Flatcar 710 Goods - Steam Workshop Link
DB Cargo Flatcar 719 Goods - Steam Workshop Link
DB Hbbins 306 - Steam Workshop Link
DB SD Car 163 - Steam Workshop Link
DB Sliding Wall 299 - Steam Workshop Link
DB Covered Freight - Steam Workshop Link
DB Freight - Steam Workshop Link
DB Glmhs50 Set - Steam Workshop Link
Russian open Waggons - Steam Workshop Link - Limited use or phase out as other wagons become available.
Russian Boxcars - Steam Workshop Link - Limited use or phase out as other wagons become available.
American Caboose - Steam Workshop Link - Won't use in this playthrough.

Road/Stops:

Parking log Mod - Steam Workshop Link - It's actually more road types so the AI can do weird things when expanding off these types.
Truck Stop 1.1 - Steam Workshop Link
Large Tram/Bus station - Steam Workshop Link
British Road mod - Steam Workshop Link
British phone and pillboxes - Steam Workshop Link
Big Bus station - Steam Workshop Link
Glass bus stop - Steam Workshop Link
Modern Truck stop + Warehouse - Steam Workshop Link
1970's Bus Depot - Steam Workshop Link
Bus/Tram stop - Steam Workshop Link - Just added.

Bus/Truck:

40ton Truck Set Britan 1 - Steam Workshop Link
Mercedes-Benz Citaro - Steam Workshop Link
Routemaster Original wide version - Steam Workshop Link - Has no running cost so won't use outside of decoration.
UK Bus Merc MK2 Arriva Inter - Steam Workshop Link
UK Bus Merc MK2 Arriva MAX - Steam Workshop Link
UK Bus Merc MK2 Arriva MAX (un) - Steam Workshop Link
UK Bus Merc MK2 Southern - Steam Workshop Link
UK Bus Volvo 5000 Arriva 2017 - Steam Workshop Link
UK Bus Volvo 5000 Arriva Country - Steam Workshop Link
UK Bus Volvo 5000 Arriva Inter - Steam Workshop Link
UK Bus Volvo 5000 First Barbie old - Steam Workshop Link
UK Bus Volvo 5000 First Barbie new - Steam Workshop Link
UK Bus Volvo 5000 First Urban - Steam Workshop Link
Van Hool Busses - Steam Workshop Link
Volvo Enviro 500 Vectis Liveries - Steam Workshop Link
Merc Citaro C&G Wiener Livery - Steam Workshop Link
Scania R730 Lorries - Steam Workshop Link

Tram:

Ringhoffer horse drawn tram - Steam Workshop Link
Godarville Tram - Steam Workshop Link
Wien Type E3c5 - Steam Workshop Link
Vienna A & B ULF - Steam Workshop Link
Tram Tracks/Light rails - Not on steam and also crashes the game a lot, not recommended and I won't use it going foward in new saves.
Alstom Citadis 302 - Steam Workshop Link

Air:

Freight Airports - Steam Workshop Link

Airplanes:

De Havilland Canada DHC-7 BA - Steam Workshop Link
A320 BA - Steam Workshop Link
A320 EasyJet - Steam Workshop Link
BA Concorde - Steam Workshop Link - Just added.
Boeing 727 - Steam Workshop Link - Just added.

Ships:

Ship Project 1430 - Steam Workshop Link
Ship Project Zarya R38 - Steam Workshop Link
Ship Type 1660 Kizhy - Steam Workshop Link - Just added.

Plopable assets:

British Signal box - Steam Workshop Link
40ton Truck asset set Britan 1 - Steam Workshop Link
British Sign Posts - Steam Workshop Link
European Freight Cars - Steam Workshop Link
European Locomotives - Steam Workshop Link
European Passenger Cars - Steam Workshop Link
Fenco-deco snap to railway - Steam Workshop Link
GWR Water Tower - Steam Workshop Link
Signal box - Steam Workshop Link
Construction lots - Steam Workshop Link
Placable town buildings - Steam Workshop Link - disable when generating maps or you will break shit.
Goods as assets - Steam Workshop Link
Trucks as assets - Steam Workshop Link
Varius cargo assets - Steam Workshop Link
Building contractors - Steam Workshop Link
BLS fences - Steam Workshop Link
BLS Decorations - Steam Workshop Link
BLS animals - Steam Workshop Link
Deco Animals - Steam Workshop Link - Just added.
Autohaus Paket - Steam Workshop Link - Just added. - Car showrooms.

Other:

BR Company Logos - Steam Workshop Link
London Overground Logo - Steam Workshop Link
UK & Eir Logo Pack - Steam Workshop Link
Industry Tycoon - Steam Workshop Link - Allows building of stock industry.
Package (lots of items in one) - Steam Workshop Link
Time slow mod - Steam Workshop Link - Also reduces/increases costs/income to match.
Cargo Magnet - Steam Workshop Link - I'll probably never use these or just use them for looks
Cargo Generator - Steam Workshop Link - I'll probably never use these or just use them for looks
Girder Bridges - Steam Workshop Link - For that council budget or inner city look.
Viaducts - Steam Workshop Link
LNER Fixed animations - Steam Workshop Link
Steam emission power mod - Steam Workshop Link - reduces/increases steam/smoke based on power
Track fences - Steam Workshop Link
Sound Isolation fences - Steam Workshop Link
Compartmental Freight - Steam Workshop Link - Just added.