| Infobox | |
|---|---|
| Price | € 25 |
| Consumes electricity | 35 power units |
| XP gained for constructing | 410 XP |
| Size | 3x3 tiles |
| Time to 100% accumulation | 35:00 |
| Must be placed on | Land |
| Road required | Yes |
| Max number of facilities | Unlimited |
| Available from | XP Level 7 |
| Construction / upgrading costs | Construction / upgrading time | Income, money | Income, XP | Repair costs | Profitability per hour including repairs | |
|---|---|---|---|---|---|---|
| Initially | € 25 | 1:00:00 | $ 1,500 | 6 | $ 2,200 | $ 2,218 |
| Level 1 | $ 6,875 | 30:00 | $ 1,724 | 7 | $ 2,640 | $ 2,536 |
| Level 2 | $ 11,687 | 39:00 | $ 1,983 | 9 | $ 3,168 | $ 2,901 |
| Level 3 | $ 19,868 | 50:42 | $ 2,281 | 11 | $ 3,801 | $ 3,319 |
| Level 4 | $ 33,776 | 1:05:54 | $ 2,623 | 13 | $ 4,561 | $ 3,794 |
| Level 5 | $ 57,420 | 1:25:40 | $ 3,017 | 16 | $ 5,474 | $ 4,336 |
Sources for the last table:
Must build 2 stratospheres simultaneously to obtain secret Award #197.