Rusty uses Spare Parts to buy everything from crops to more farmland in Rusty's Retirement. I'll show you how to quickly collect Spare Parts so you can expand your next Rusty's Retirement farm.
How to make Savings Shares fast in Rusty's Retirement
When you start a new farm in Rusty's Retirement, you will have a house, a biofuel converter, a well, and one 4×4 harvester. You will also have 400 Spare Parts and 8 Biofuel. Instead of investing this money directly into crops, I recommend buying a Water Bot and a Harvest Bot from the shop. They are located in the “buildings” tab, which has a small house icon.
They will help Rusty harvest crops much faster and free up space for him to build and move crops to the Biofuel Converter. Start by building the Water Bot, then set up the Harvest Bot and fill the field with wheat seeds.
The wheat will grow and be harvested quickly thanks to the robots. With the money, plant two rows of wheat, one row of beets and one row of cabbage.
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While these are growing, take a moment to look at the locked crops in the crop shop. Hovering over them, you can see the requirements to unlock them. Crops like beets aren't as capable of producing Waste Parts quickly, but you'll need to grow a certain amount to unlock crops that are. Grow enough to unlock the crops with their requirements and you can pretty much forget about them after that.
At this point, you'll also want to change the order of Rusty's priority tasks. I did build his first followed by movement, then biofuel, then crop and water because the robots take care of those. This should help Rusty complete the tasks that only he can do before helping with the tasks that the robots manage.
As you progress through the game, earning the most money will require unlocking new crops, adding more robots, and starting to invite new friends. I started by adding a Biofuel Bot so I could take advantage of the Biofuel to Spare Parts conversion. I then added a second Water Bot, a second Harvest Bot, and quickly made enough to build Haiku's house for an extra set of hands. I also built another Biofuel Converter to get lots of Biofuel to convert to Spare Parts.
Convert Biofuel to Spare Parts
While crops are being harvested, Rusty and his friends will put three different types of crops on one Biofuel Converter. The converter will start creating Biofuel as soon as all three are placed. After about 20 seconds, the crops will disappear and Biofuel will be created.
Biofuel is needed to fuel new robots and buildings, but it can also be converted into Spare Parts! There is a small “convert” button in the shop to exchange Biofuel for Spare Parts.
This tab can be used to convert your Biofuel into additional Spare Parts. One Biofuel is worth 10 Spare Parts. As an example, in the image below I have 230 Biofuel and 856 Spare Parts.
After selecting 100 Biofuel in the converter and completing the conversion, my amount of Spare Parts increases from 856 to 1,856! While you'll want to save Biofuel later to unlock the most expensive houses, it's a perfect way to get cash at the start of your farm.
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If you want to use this method the most, the following crops are perfect to convert to Biofuel for your farm. The “Biofuel Conversion Value” in the table shows how much Biofuel a plant will turn into in the Biofuel Converter. Add the Biofuel Conversion Value of all three crops on Biofuel Converter to see how much Biofuel you will get.
| harvest | Price of Seed | Biofuel Conversion Value |
Number of Cycles | Total Biofuel Conversion (One Plant, All Cycles) |
|---|---|---|---|---|
| Cabbage | 2 Spare Parts | 2 Biofuel | 3 | 6 Biofuel |
| Carrot | 3 Spare Parts | 3 Biofuel | 4 | 12 Biofuel |
| corn | 5 Spare Parts | 4 Biofuel | 5 | 20 Biofuel |
| onion | 7 Spare Parts | 5 Biofuel | 6 | 30 Biofuel |
| turnip | 9 Spare Parts | 6 Biofuel | 8 | 48 Biofuel |
| Peak Beans | 12 Spare Parts | 7 Biofuel | 9 | 63 Biofuel |
| Pumpkin | 19 Spare Parts | 8 Biofuel | 10 | 80 Biofuel |
| Red Chilli | 16 Spare Parts | 9 Biofuel | 11 | 99 Biofuel |
| Red Onion | 18 Spare Parts | 10 Biofuel | 11 | 110 Biofuel |
| oats | 24 Spare Parts | 11 Biofuel | 12 | 132 Biofuel |
| Yellow bell pepper | 28 Spare Parts | 12 Biofuel | 14 | 168 Biofuel |
| Artichoke | 55 Spare Parts | 13 Biofuel | 15 | 195 Biofuel |
| sweet potato | 50 Spare Parts | 14 Biofuel | 15 | 210 Biofuel |
| Red Grapes | 70 Spare Parts | 15 Biofuel | 16 | 240 Biofuel |
| Kale | 75 Spare Parts | 18 Biofuel | 18 | 324 Biofuel |
Best crops for Spare Parts in Rusty's Retirement
While some crops in the game are better for Biofuel, others are perfect for grinding Spare Parts. This list will show all the crops in the game that give the most profit with their initial cost in mind. As you expand Rusty's farm, you'll stop growing the crops at the top of the list and start developing those closer to the bottom.
| harvest | Price of Seed | Spare Parts Provided (per cycle) |
Number of Cycles | Total Profit (One Plant, All Cycles) |
|---|---|---|---|---|
| wheat | 0 Spare Parts | 3 Spare Parts | 1 | 3 Spare Parts |
| Leek | 2 Spare Parts | 4 Spare Parts | 4 | 14 Spare Parts |
| Celery | 3 Spare Parts | 5 Spare Parts | 5 | 22 Spare Parts |
| Lettuce | 5 Spare Parts | 5 Spare Parts | 6 | 25 Spare Parts |
| Cauliflower | 7 Spare Parts | 6 Spare Parts | 7 | 35 Spare Parts |
| tomato | 9 Spare Parts | 8 Spare Parts | 8 | 55 Spare Parts |
| Peak Bean | 12 Spare Parts | 9 Spare Parts | 9 | 69 Spare Parts |
| Broccoli | 16 Spare Parts | 11 Spare Parts | 10 | 94 Spare Parts |
| Red Chilli | 16 Spare Parts | 12 Spare Parts | 11 | 116 Spare Parts |
| Red Onion | 18 Spare Parts | 13 Spare Parts | 11 | 125 Spare Parts |
| garlic | 27 Spare Parts | 15 Spare Parts | 13 | 168 Spare Parts |
| Green bell pepper | 35 Spare Parts | 17 Spare Parts | 14 | 203 Spare Parts |
| Cucumber | 35 Spare Parts | 18 Spare Parts | 15 | 235 Spare Parts |
| Black beans | 45 Spare Parts | 19 Spare Parts | 16 | 259 Spare Parts |
| Green Grapes | 60 Spare Parts | 21 Spare Parts | 17 | 297 Spare Parts |
| Kale | 75 Spare Parts | 24 Spare Parts | 18 | 357 Spare Parts |
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