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Recycling tech
| Level | Credits | 
|---|---|
| 1 | 32,767 | 
| 2 | 49,151 | 
| 3 | 73,726 | 
| 4 | 110,589 | 
| 5 | 165,883 | 
| 6 | 248,825 | 
| 7 | 373,237 | 
| 8 | 559,855 | 
| 9 | 839,783 | 
| 10 | 1,259,674 | 
| 11 | 1,889,511 | 
| 12 | 2,834,266 | 
| 13 | 4,251,399 | 
| 14 | 6,377,098 | 
| 15 | 9,565,647 | 
| 16 | 14,348,470 | 
| 17 | 21,522,704 | 
| 18 | 32,284,056 | 
| 19 | 48,426,084 | 
| 20 | 72,639,125 |