Buying the rarest-sounding option
Best upgrades are not decided by the name alone. If Cargo is the real limiter, a flashy Power upgrade can still be the wrong spend.
The official Roblox description confirms three upgrade axes: Mining Power, Speed, and Cargo. Current public guide and video wording keeps best upgrades intent active, but the safe answer is still a measured order for your own fleet rather than a fake universal ranking.
Mine a Planet is an incremental mining game, so the useful answer is the one you can measure on your own fleet and planet.
Keep the route and conditions as similar as possible. Change one variable at a time.
Measure one repeatable mining loop before you spend anything. Note mining time, travel time, cargo-blocked time, and credited cash so you know what is actually slowing the run down.
If drones spend the most time breaking ore, test Mining Power first. If they spend the most time moving, test Speed first. If they pause because cargo fills too early, Cargo is the first upgrade candidate.
Do not buy several Power, Speed, and Cargo levels together and then guess what helped. Change one family, rerun the same loop, and compare the before-and-after result.
Strong Batteries, Drone Packs, Time Skips, Super Alien Treats, and reported update-log gifts can change the next best upgrade. Recheck the codes and reward pages before you lock in an upgrade order.
A new planet stage, Beta update, or fresh reward can move the bottleneck. The best upgrade before the live Beta 9 build may not stay the best after the current Overclocked systems settle.
Best upgrades are not decided by the name alone. If Cargo is the real limiter, a flashy Power upgrade can still be the wrong spend.
Public videos repeat best upgrades wording, but the safe answer is still your own measured checklist instead of a made-up one-size-fits-all order.
Reported rewards and Pet Aliens mechanics can change the next good spend. Recheck current rewards instead of assuming yesterday's order still holds.
Planet evolution and Beta updates can shift the slowest part of the loop. Always rerun the comparison after a major change.
The safest current answer is still situational: test Power when ore-breaking is slow, Speed when travel dominates, and Cargo when the hold fills first.
No official Roblox source checked on Sunday, July 26, 2026 published a fixed upgrade order. The official description still only confirms the three upgrade families.
Use current videos and public guide pages as ideas to test, not as a universal rule. Your own cycle timing is the safer tie-breaker.
Open the upgrade planner tool for the exact comparison, money farming for cash-loop context, and the updates hub when a Beta change may have moved the bottleneck.
Run the exact Power, Speed, and Cargo comparison with your own cycle times.
Check whether your best upgrade should be driven by cash-per-hour instead of raw loop feel.
Check the exact craft mutation, weather, and incident-event route before you assume the update changed a bottleneck.
Recheck the current Beta state before trusting an older upgrade order.