Mine a Planet Crafting Bench Upgrade Priority Guide

The crafting bench and smelter in Mine a Planet both have multi-tier upgrade paths that dramatically affect your crafting throughput, and the priority order in which you spend your upgrade tokens matters more than the absolute amount you spend. Some upgrades unlock new batch sizes, others reduce smelter time, and a few grant rare drop bonuses that compound across the entire crafting pipeline. This guide covers every upgrade tier for both the bench and the smelter, the optimal spend order, and which upgrades to defer for end-game players chasing the Cosmic Reaper and Astral Annihilator crafts.

For the broader crafting strategy including recipe optimization, see our Mine a Planet smelter recipes guide. For the prestige multipliers that compound with these upgrades, see our Mine a Planet prestige points guide. This principle applies broadly across all progression stages and is one of the most reliable optimization levers in the game.

Crafting Bench Upgrade Path

The crafting bench has five upgrade tiers, and each tier unlocks new recipe visibility and reduces the per-craft material cost. The first three upgrades are cheap and high-priority, while the last two are expensive and reserved for end-game players. The exact mechanics vary slightly by patch, but the underlying principle remains consistent across all player playstyles.

The first three bench upgrades are gated by your account level — Bench I requires level 5, Bench II requires level 15, and Bench III requires level 25. Bench IV and V have no level gate but cost significant Drill Pieces.

Smelter Upgrade Path

The smelter upgrade path is more impactful than the crafting bench path because it affects every smelt cycle, not just one craft. Each tier reduces batch time, extends the bulk bonus cap, and unlocks new features. Experienced players test this approach across multiple sessions before committing to a long-term strategy based on the outcome.

Smelter III is the highest-priority upgrade because it unlocks the 100-stack bonus cap, which is required for efficient Titanium Plate, Mythril Bar, and Cosmic Core recipes. Without Smelter III, you are forced to queue smaller batches and miss the bulk bonus on your most expensive recipes.

Optimal Upgrade Spend Order

The recommended upgrade order balances early-game progression with end-game throughput. Most players should prioritize Smelter I → Smelter II → Smelter III → Bench V → Smelter IV → Smelter V. Combining this insight with active pet bonuses and prestige multipliers yields compounding benefits that accelerate overall progression.

The order prioritizes the upgrades that have the largest impact on the recipes you are currently using. Smelter I-III are the foundation, Bench V is the milestone unlock for Legendary drills, and Smelter IV-V are the end-game optimizers. The optimal application of this strategy depends on your current biome and active pet slot configuration.

When to Defer the Epic Bench Upgrades

Bench III (Epic recipes) and Bench IV (Rare material discount) are intentionally lower priority because most players skip the Epic drill crafts entirely. If you are following the optimal progression path, you never craft the Plasma Drill, Quantum Borer, or Solar Flare — you go straight from Titanium Spire to Mythril Destroyer. In that case, Bench III and IV are wasted upgrades.

The exception is if you are running a trade-focused account and want to craft Epic drills specifically to sell on the trade market. In that case, Bench III and IV become higher priority because the Epic crafts are your primary income source. For a complete walkthrough of the trade economy and when Epic crafts are profitable, see our Mine a Planet trade guide.

Combine With Smelt Speed Reforges and Pets

The smelter upgrades stack additively with Smelt Speed reforges and with Smelt Speed pets like the Volcano Phoenix. A player who has Smelter V, a perfectly rolled +Smelt Speed reforge on their bound drill, and a Volcano Phoenix equipped will see smelt times that are roughly half of what a fresh-rebirth player can manage.

This compounding effect is the central reason to invest in both the smelter upgrades and the reforge system. For a complete walkthrough of the reforge priority and stat pool, see our Mine a Planet reforge strategy guide. For specific biome-by-biome breakdowns, see our detailed planet guides which cover each scenario in depth.

Sequencing the Bench and Smelter Upgrades Together

The crafting bench and smelter upgrades are deeply interconnected, and the optimal sequencing is not simply to upgrade them in any order as soon as you have the materials. The correct approach is to always upgrade the smelter one tier ahead of the crafting bench, because a higher-tier smelter unlocks larger batch sizes that the crafting bench needs to consume at a steady rate. If your crafting bench out-paces your smelter, you end up with stranded ingots and a queue that stalls every few minutes, which is the most common cause of the dreaded "nothing to craft" plateau that frustrates so many mid-game players.

For example, if you are about to spend 10 Titanium Plates on the Crafting Bench III upgrade, you should first spend the 25 Iron Alloys on the Smelter II upgrade and let it unlock the 75-stack bonus for at least one full in-game day. This sequencing ensures that by the time the new crafting bench tier comes online, your smelter is already feeding it ingots at a rate that matches the new throughput. Reversing the order — upgrading the crafting bench first — leaves you with a faster bench but the same slow smelter, which is a wasted upgrade in practice.

When to Skip an Upgrade Entirely

Not every upgrade is worth doing the moment you unlock it. Specifically, the Smelter V and Crafting Bench V upgrades cost so many high-tier materials that they should only be attempted by players who have already completed at least one Second Rebirth and have a steady stream of Void Shards feeding into Cosmic Core production. For players who are still on their first or second planet, those upgrades are functionally useless because the lower-tier planets do not generate enough Mythril and Stardust to feed them in any reasonable time. Save your rare materials for the upgrades that will actually accelerate your current progression stage.

For players who are on the bubble between two upgrades, our crafting tier progression guide breaks down the exact cost-benefit calculation for each tier transition. The general rule of thumb is: if the upgrade unlocks a new tier of drill that you can immediately craft, the upgrade is worth doing now; if it only makes existing tiers faster, you can defer it until you have the materials for the next tier transition anyway.

Frequently Asked Questions

Should I upgrade the bench or the smelter first?

Always upgrade the smelter first because the time savings apply to every batch, not just one craft. The bench upgrades unlock specific recipes, but the smelter upgrades compound across the entire smelt pipeline. Generally yes, but the optimal timing depends on your current resource reserves and your active biome's node HP profile.

Is Smelter III worth the 10 Titanium Plate cost?

Yes, Smelter III is the single most impactful upgrade in the entire game. The 100-stack bonus cap unlocks efficient smelting for every late-game recipe, and the 20% time reduction saves hours across a typical grinding session. Budget your resources carefully because overspending on a single roll leaves you unable to fund the next crafting milestone.

What is the highest-priority upgrade for end-game players?

For end-game players, Smelter V is the highest priority because it unlocks the +Rare Drop Chance bonus, which compounds with the Rare Drop Chance prestige multiplier and with rare drop pets like the Moon Fox and Astral Cat. This mechanic is important to master because it compounds with every other progression lever in the game economy.

Can I downgrade an upgrade if I change my mind?

No, upgrades are permanent and cannot be downgraded. The Drill Pieces and materials spent on an upgrade are not refundable. Plan your upgrade path carefully before spending. Yes, but the optimal approach depends on your current progression stage and your stockpile of supporting materials.

Do the upgrades persist across rebirths?

Yes, both the crafting bench upgrades and the smelter upgrades persist across rebirths. Only your level, ore, and unsmelted inventory are wiped on a rebirth cycle. Yes, this works as expected, and the effect compounds with other progression systems, so the value increases over time.

Common Upgrade Mistakes to Avoid

The most common upgrade mistake is to spend Drill Pieces on Bench III (Epic recipes) before you have crafted all Rare-tier drills. Bench III unlocks Epic recipes that you cannot use until you have the prerequisite materials, which means the upgrade is wasted Drill Pieces in the early game. Save Bench III until you have at least one Rare-tier drill crafted and bound.

The second mistake is to defer the Smelter III upgrade because of the 10 Titanium Plate cost. Smelter III is the single most impactful upgrade in the game, and the 10 Titanium Plates pay for themselves within 2-3 grinding sessions. Players who defer Smelter III to save materials end up spending more time on smaller batches than they would have spent crafting the Titanium Plates upfront.

The third mistake is to upgrade the smelter and bench in the wrong order. The smelter upgrades are higher priority because they affect every smelt cycle, while the bench upgrades affect only one craft at a time. Always prioritize the smelter.

How the Upgrades Interact With the Rebirth Cycle

Both the crafting bench and smelter upgrades persist across rebirths, which means a player who invests in the upgrade path early in their account lifecycle benefits from those upgrades for the entire duration of their playtime. This persistence is one of the strongest arguments for upgrading early rather than waiting until end-game.

A practical consequence is that a player who has fully maxed Smelter V and Bench V can focus their post-rebirth sessions entirely on Drill Piece farming and crafting, rather than re-investing in upgrades. The compounding effect of persistent upgrades is significant — a fully upgraded player earns roughly 30-40% more Drill Pieces per hour than a fresh-rebirth player with no upgrades.

Why Some Players Skip Bench IV

Bench IV (Rare material discount) is a tempting upgrade because the -10% material cost sounds great on paper. In practice, however, the discount only applies to Rare-tier crafts, and most players only craft Rare-tier drills once per playthrough. The 100,000 Drill Piece cost is rarely worth the savings on a single drill craft.

A more efficient use of those 100,000 Drill Pieces is to invest them in the Smelter IV upgrade, which affects every smelt cycle rather than just one craft. Save Bench IV for players who are actively running trade accounts and crafting Rare drills in bulk.

Plan Your Upgrade Path Around Your Rebirth Cycle

The optimal upgrade timing is to complete the Bench V and Smelter III upgrades before your first rebirth, then complete Smelter IV and Smelter V in the cycles that follow. This sequence ensures that you unlock Legendary recipes immediately after your first rebirth and can start chasing the Mythril Destroyer and Cosmic Reaper crafts without delay.

A practical pre-rebirth upgrade checklist is: Veteran players typically learn to recognize these patterns within the first 10-15 hours of focused play.

• Smelter I: complete by level 10

• Smelter II: complete by level 20

• Smelter III: complete by level 25

• Bench V: complete by level 30 (post-rebirth)

• Smelter IV: complete by level 40

• Smelter V: complete by level 50

Following this checklist keeps your upgrade progression aligned with your crafting needs and avoids wasting Drill Pieces on upgrades you cannot yet use. This principle applies broadly across all progression stages and is one of the most reliable optimization levers in the game.