Rusty uses spare parts to purchase everything from crops to more farmland at Rusty’s Retirement. I’ll show you how to gather spare parts quickly so you can expand your next Rusty’s Retirement farm.
How to Make Spare Parts Quickly at Rusty’s Retirement
When you start a new farm in Rusty’s Retirement, you will have a house, a biofuel converter, a well, and a 4×4 farmland. You will also have 400 Spare Parts and 8 Biofuels. Instead of investing this money directly into crops, I recommend purchasing a Water Bot and a Harvest Bot from the store. They are located in the “buildings” tab, which has a small icon of a house.
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.
Wheat will grow and be harvested quickly thanks to robots. With the money, plant two rows of wheat, one row of beets, and one row of cabbage.
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While they are growing, take a moment to look at the blocked crops in the grow tent. By hovering over them, you will be able to see the requirements to unlock them. Crops like beets aren’t as good at generating scrap pieces quickly, but you’ll need to farm a certain amount to unlock the crops that are. Grow enough to unlock the crops with their requirements and after that you can practically forget about them.
At this point, you’ll also want to change the order of Rusty’s priority tasks. First I did the construction, then the moving, then the biofuel, then the harvesting and water, since the robots take care of that. This should help Rusty complete tasks that only he can do before helping with tasks that the bots manage.
As you progress through the game, to get the most money you will need to unlock new crops, add more robots, and start inviting new friends. I started by adding a Biofuel Bot so I could take advantage of converting biofuel to spare parts. I then added a second Water Bot, a second Harvest Bot, and quickly earned enough to build Haiku’s house for an extra pair of hands. I also built another biofuel converter to get a large amount of biofuel to convert into spare parts.
Conversion of biofuels into spare parts
As the crops are harvested, Rusty and his friends will place three different varieties of crops into a biofuel converter. The converter will begin 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 power new robots and buildings, but it can also be turned into spare parts! There is a small “convert” button in the store to exchange biofuel for spare parts.
This tab can be used to convert your biofuel into additional spare parts. One Biofuel is worth 10 Refills. As an example, in the image below I have 230 Biofuels and 856 Spare Parts.
After selecting 100 Biofuels in the converter and completing the conversion, my Spares amount increases from 856 to 1,856! While you’ll want to save up biofuel later to unlock the more expensive houses, it’s a perfect way to get money at the start of your farm.
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If you want to make the most of this method, the following crops are perfect to turn into biofuel for your farm. The “Biofuel Conversion Value” in the table shows how much biofuel a plant will convert into in the biofuel converter. Add up the biofuel conversion value of all three crops in a biofuel converter to see how much biofuel you will get.
| Crop | Seed price | Biofuel conversion Worth |
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 |
| Pinto beans | 12 spare parts | 7 biofuel | 9 | 63 Biofuel |
| Pumpkin | 19 spare parts | 8 Biofuel | 10 | 80 Biofuel |
| Red pepper | 16 spare parts | 9 Biofuel | eleven | 99 Biofuel |
| Red onion | 18 spare parts | 10 biofuel | eleven | 110 Biofuel |
| Oatmeal | 24 spare parts | 11 Biofuel | 12 | 132 Biofuel |
| yellow pepper | 28 spare parts | 12 Biofuel | 14 | 168 Biofuel |
| Artichoke | 55 spare parts | 13 Biofuel | fifteen | 195 Biofuel |
| Sweet potato | 50 spare parts | 14 Biofuel | fifteen | 210 Biofuel |
| Red grapes | 70 spare parts | 15 Biofuel | sixteen | 240 Biofuel |
| kale | 75 spare parts | 18 Biofuel | 18 | 324 Biofuel |
Best Crops for Spare Parts at Rusty’s Retirement
While some crops in the game are best for biofuel, others are perfect for grinding spare parts. This list will show all the crops in the game that give the highest profits considering their initial cost. As you expand Rusty’s farm, you’ll stop growing the crops at the top of the list and start growing those closer to the bottom.
| Crop | Seed price | Spare parts delivered (per cycle) |
Number of cycles | Total benefit (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 |
| Pinto bean | 12 spare parts | 9 spare parts | 9 | 69 spare parts |
| Broccoli | 16 spare parts | 11 spare parts | 10 | 94 spare parts |
| Red pepper | 16 spare parts | 12 spare parts | eleven | 116 spare parts |
| Red onion | 18 spare parts | 13 spare parts | eleven | 125 spare parts |
| Garlic | 27 spare parts | 15 spare parts | 13 | 168 spare parts |
| Green pepper | 35 spare parts | 17 spare parts | 14 | 203 spare parts |
| Cucumber | 35 spare parts | 18 spare parts | fifteen | 235 spare parts |
| black beans | 45 spare parts | 19 spare parts | sixteen | 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 |
Looking for a new idle game to learn? Check out our Pixel Heroes tier list here at MyFullGames.