General Fantasy Terrain

Bambu A1* - An amazing 3D printer! It just works! Great for beginners!
Bambu A1 on Amazon*
PLA* - This is the PLA I use and can recommend for the price
Gaahleri Airbrush* - I absolutely love the 0.4mm airbrush for terrain!
Super Glue* - Gel form but provides a large bead. Great for 3D printed terrain!
Trees* - Just some normal trees! Take your pick!
Crop Fields* - Just get a welcome mat and cut it up!

Ulvheim Buildings
Tower and other buildings
Well
River Connections
Tree Bases (this one is not free) 
Carts
Fences
Barrels

*Affiliate links that provide a commission to me at no cost to you!