Radio Tower
The Radio Tower provides a changing selection of item-for-item exchanges. These are trades, not crafting recipes: each offer takes the items shown under You give and immediately awards the items shown under You receive.
How trades work
The Radio Tower draws its available offers at random from the pool of possible trades shown below. All offers refresh every 12 hours. Seasonal events may temporarily change the pool.
A trade slot determines how many offers are available during each refresh. Upgrading the Radio Tower unlocks more slots.
Trade slots
The Radio Tower starts with one trade slot at level 1 and gains another slot at every even-numbered building level.
| Radio Tower level | Trade slots |
|---|---|
| 1 | 1 |
| 2–3 | 2 |
| 4–5 | 3 |
| 6–7 | 4 |
| 8–9 | 5 |
| 10 | 6 |
Up to three permanent extra Radio Tower slots can also be purchased from the Premium Store. These are added to the slots unlocked by building upgrades, allowing a level 10 Radio Tower to have up to nine trade slots.
Current upgrades and possible trades
The tables below use the current game definitions. The possible-trades table shows the full normal trade pool, not the smaller random selection currently available to an individual player.
Requires Scavenging level 20 to build.
Possible trades
| You give | You receive |
|---|---|
| 10 × Logs | 100 × Iron Bar |
| 10 × Logs | 15 × Cloth |
| 10 × Logs | 50 × Nails |
| 10 × Logs | 50 × Scrap |
| 10 × Scrap | 5 × Wire |
| 10 × Nails; 5 × Scrap | 1 × Tarp |
| 5 × Steel | 5 × Gears |
| 10 × Iron Bar | 10 × Steel |
| 100 × Scrap | 100 × Gun Powder |
| 1 × Logs; 1 × Cloth | 5 × Thread |
| 10 × Logs; 5 × Cloth | 20 × Thread |
| 10 × Rope | 5 × Plastic |
| 1 × Rope | 1 × Tarp |
| 1 × Rope | 2 × Gears |
| 1 × Rope | 3 × Thread |
| 1 × Iron Bar | 5 × Wire |
| 1 × Tarp | 20 × Barley Seeds |
| 1 × Tarp | 5 × Rope; 5 × Plastic |
| 1 × Tarp | 15 × Dirty Water |
| 5 × Steel | 10 × Wire |
Upgrades
| Upgrade | Items required | Cash cost |
|---|---|---|
| Build Radio Tower | 500 × Iron Bar | $0 |
| Upgrade Radio Tower 2 | 1,000 × Iron Bar; 1 × Salvaged Tech | $250 |
| Upgrade Radio Tower 3 | 1,000 × Iron Bar; 2 × Salvaged Tech | $500 |
| Upgrade Radio Tower 4 | 250 × Steel; 5 × Salvaged Tech | $1,000 |
| Upgrade Radio Tower 5 | 400 × Steel; 5 × Salvaged Tech | $25,000 |
| Upgrade Radio Tower 6 | 500 × Steel; 10 × Salvaged Tech | $50,000 |
| Upgrade Radio Tower 7 | 1,000 × Steel; 10 × Salvaged Tech | $100,000 |
| Upgrade Radio Tower 8 | 1,200 × Steel; 15 × Salvaged Tech | $250,000 |
| Upgrade Radio Tower 9 | 1,500 × Steel; 1 × Electrical Components | $300,000 |
| Upgrade Radio Tower 10 | 2,000 × Steel; 5 × Electrical Components | $500,000 |