1. Observe one run
Note whether cold, capacity, or mining time stops useful progress first.
Mine a Mountain: What Should You Upgrade First?
There is no honest universal S/A/B order: the best purchase is the one that removes the first blocker in your current mining run.
Quick answer
Buy Warmth when cold sends you back, Backpack when the bag fills first, and Pickaxe when mining speed is the bottleneck. Test one variable on the same route before buying again.
Decision table
Rank the blocker, not the upgrade
The official Roblox description confirms all three upgrade systems and an hourly mountain rotation, so a fixed global tier list would hide the route and session context.
| Upgrade | Choose it when | Expected benefit | How to verify |
|---|---|---|---|
| Warmth | Cold ends the climb first | Reach higher or stay longer before returning | Repeat the same climb and check whether cold still forces the first return. |
| Backpack | Capacity fills before cold or slow mining stops you | Carry more crystals per sell trip | Count full-bag returns on the same route before and after upgrading. |
| Pickaxe | Breaking rock or crystals is the slowest part of the run | Clear the route faster and reduce time per node | Time the same section; do not compare two different hourly mountains. |
2. Change one variable
Buy one matching upgrade. Changing several at once makes the result impossible to compare.
3. Retest the route
Use the same mountain when possible; the official page says a new mountain appears every hour.
Evidence boundary
Why this page does not publish S-tier gear
No stable creator-owned table found in this review supports universal letter grades across the changing mountain, shop stock, runes, and player routes. Player videos are useful demonstrations, but individual runs do not prove a permanent ranking.