Tower Incremental on Roblox, developed by Lucky CStudios, features three distinct metal types across its vertical climb: Silver, Iron, and Star Metal. Each metal serves as a tier gate for upgrades, trails, upgrade trees, and rebirth milestones. While Silver is harvested directly as raw currency in the early mine, Iron requires multi-step processing in the Smeltery, and Star Metal requires advanced conversion at the Star Forge.
Overview of Metal Types in Tower Incremental
Each metal unlocked as you scale floors requires specific facilities and serves distinct progression functions:
| Metal Type | Unlocked Location | Input Requirement | Refined Output | Primary Uses |
|---|---|---|---|---|
| Silver | Floor 3 (Mine) | Direct pickaxe mining | Silver currency | Pickaxe upgrades, early upgrade tree, early trails |
| Iron | Floor 10 (Mine & Smeltery) | Iron Ore nodes | Iron Ingots (smelted) | Mid-game upgrade trees, permanent upgrades, mid-tier trails |
| Star Metal | High-tier Tower (Star Forge) | Iron Ingots | Star Metal units | Rebirth 7 requirement, high-tier trails, advanced upgrade trees |
Silver: Early Mining and Pickaxe Upgrades
Silver is the first metal resource unlocked in Tower Incremental, located behind the Floor 3 door costing 1,500 Gold.
Players gather Silver by mining wall blocks inside the Mine cavern. Unlike standard Gold generation, Silver requires manual clicking or activating the auto-mine feature in the interface. In this room, players spend Silver directly on several core upgrades:
- Pickaxe Mining Speed: Decreases swing time when striking ore blocks.
- Silver Per Ore: Increases the base amount of Silver yielded per broken block.
- Gold Multiplier: Leverages Silver earnings to boost passive Gold generation across the tower.
Silver also unlocks early nodes in Upgrade Tree 1 starting on Floor 5, as well as cosmetic trails like the Copper Trail and Silver Trail in the ground-floor trail shop.
Iron and Iron Ingots: The Smeltery Pipeline
Iron introduces a multi-step supply chain starting at Floor 10. Reaching this milestone allows Iron Ore veins to spawn alongside silver in the Mine.
Mining and Processing Iron Ore
Unlike Silver, raw Iron Ore cannot be spent immediately. The production loop functions as follows:
- Mining Iron Ore: Players strike gray iron ore blocks inside the Mine to harvest raw Iron Ore. Upgrades purchased with Gold—such as Ore Density, spawner count, and Lucky Strike—increase the frequency and yield of iron nodes.
- Transporting to the Smeltery: Raw ore is brought to the Smeltery room on Floor 10. An upgrade costing 30,000,000 Gold allows players to auto-deposit iron ore from anywhere without returning to the room.
- Smelting into Ingots: Ore enters a conveyor belt, passes through the smelter, and is pressed into finished Iron Ingots. Upgrading the Smeltery improves conveyor belt travel speed and deposit bin holding capacity.
Spending Iron Ingots
Iron Ingots are a vital currency throughout the early rebirth cycle:
- Upgrade Tree Progression: Mid-tier branches require hundreds to thousands of Iron Ingots to unlock bulk smelting, faster ingot processing, and substantial multiplier buffs.
- Permanent Upgrades: Starting at Floor 20, players spend Iron Ingots on permanent milestone upgrades (such as preserving Upgrade Tree Section 1 or upgrade boards across rebirths).
- Specialized Trails: Trails such as the Gilded Trail (75 Iron), Aurora Trail (500 Iron), and Crown Trail (5,000 Iron) require finished ingots to purchase.
Star Metal: High-Tower Refining at the Star Forge
Star Metal is an advanced late-game metal unlocked well past Floor 80, after completing multiple rebirth tiers (around Rebirth 6 and Rebirth 7 progression).
The Star Forge Facility
Star Metal is crafted in a dedicated room known as the Star Forge:
- Production Method: Players deposit refined Iron Ingots into the Star Forge mechanism.
- Refinement Process: The forge processes the iron ingots into Star Metal over time, operating similarly to the Smeltery conveyor mechanic.
- Forge Upgrades: Players can upgrade the Star Metal multiplier and machine storage capacity directly at the forge station.
Uses for Star Metal
Star Metal is critical for breaking through late-game progression walls:
- Rebirth Milestones: Rebirth 7 requires 5,000 Star Metal alongside high-tier currency amounts before the reset can be triggered.
- High-Tier Trails: Specialized late-game trails (such as trails requiring Star Metal) provide massive percentage boosts to Luck, Wood, and Essence generation.
- Advanced Upgrade Trees: Upper tiers of the upgrade tree system (such as Upgrade Tree 4 and 5) demand Star Metal to unlock global multipliers and automatic resource collection perks.
Upgrades and Multipliers Impacting Metal Production
Scaling metal output requires coordinating multiple multiplier systems found across the tower:
- Glyphs: Stepping on elemental glyph pads grants stackable multipliers. Water and Poison glyphs provide high multipliers to Silver and Iron gain, while later glyphs provide luck boosts that increase rare ore drops.
- Upgrade Tree Bulk Smelt: Unlocking "Bulk Smelt" nodes drastically multiplies the number of ingots produced per batch in the Smeltery.
- Merchant Potions: The potion merchant offers timed 50% boosts for both Silver and Iron production that remain active through rebirth resets.
- Totems: Late-game totem shrines allow players to construct dedicated totems for metals, boosting raw yields and forge processing efficiency.
Frequently Asked Questions
What are all the metal types in Tower Incremental on Roblox?
Tower Incremental features three primary metals: Silver, Iron (which refines into Iron Ingots), and Star Metal.
How do you get Iron Ingots in Tower Incremental?
You must mine raw Iron Ore from the Mine once reaching Floor 10, then deposit the ore into the Smeltery machine where conveyor belts and presses convert it into finished Iron Ingots.
Where is Star Metal made?
Star Metal is forged at the Star Forge on upper tower floors by depositing processed Iron Ingots into the forge mechanism.
Do metals reset when you rebirth?
Raw inventories of unspent metals reset upon rebirth unless protected by specific milestone thresholds. However, purchasing permanent upgrades with Iron Ingots prevents associated upgrade tree sections and glyph boards from resetting.
