Upgrade costs
What each level costs, as read in game. A level is sometimes paid in several identical instalments, which the game calls tiers: the total is the sum. From level 6 on, the factory then works for hours: one factory fuel removes ten minutes, an ad removes forty.
🏭 Factory
| Target level | How it is paid | Total cost | Works |
|---|---|---|---|
| 2 | a single instalment | 500 used bottle caps | - |
| 3 | a single instalment | 900 used bottle caps | - |
| 4 | a single instalment | 1,500 used bottle caps | - |
| 5 | a single instalment | 4,500 used bottle caps | - |
| 6 | a single instalment | 18,000 used bottle caps | 6 h 40 min, or 40 fuel |
| 7 | 2 instalments of 18,000 | 36,000 used bottle caps | 11 h 40 min, or 70 fuel |
| 8 | 2 instalments of 40,000 | 80,000 used bottle caps | 17 h 40 min, or 106 fuel |
| 9 | 2 instalments of 80,000 | 160,000 used bottle caps | - |
| 10 | 2 instalments of 113,000 | 226,000 used bottle caps | - |