Progression tier list
A practical ranking of what to prioritize. This ranks decisions around systems named in the official description; it does not invent rare items or hidden multipliers.
S
A
B
How the ranking works
S-tier priorities keep the official buy-stock-sell loop moving or automate it. A-tier actions improve a working store. B-tier choices can still be fun, but they are less likely to fix an operational bottleneck.
Game updates can change the ideal order. Use the profit calculator with values from your own server before committing cash.