Satisfactory Best Alternate Recipes — Priority Tier List

Alternate recipes are the single biggest factor in how clean or how sprawling your Satisfactory factory becomes. You do not choose them at will — you earn them by scanning Hard Drives in the MAM. Each scan locks in 2 alternates at the moment it starts and reveals them after a 10-minute research; you may re-roll the offer once, so one drive can hand you up to 4 unique recipes. The game ships 108 alternate recipes across Tiers 2–9: 107 are unlocked by Hard Drive scans, and one — Distilled Silica — comes free the moment you unlock Quartz Purification. Nine of them enter the reward pool without needing any other alternate first — Cast Screws and Iron Wire need nothing at all, the other seven only a MAM research. Because alternates trade one resource for another rather than being straight upgrades, the smart move is to take the ones that break your current bottleneck first.

This page ranks all 108 by what they actually remove — ore ceilings, water ceilings, power ceilings, and floor-space ceilings — using the real inputs, outputs, buildings and unlock tiers published on the official wiki. Every number below is pulled straight from the source table; nothing is estimated.

How to read the priority

The game itself states alternates “cannot be considered upgrades” because each one balances raw-material use, space, power, simplicity and material availability. So a recipe that is “best” for one base is useless for another. The tiers below are built on three measurable properties you can verify in the table:

• Ore/resource leverage — does it make more product per raw ore than the standard smelt? The Pure ingot line does: standard smelting is a 1:1 ore-to-ingot ratio (Caterium is 3 ore → 1 ingot), while Pure Iron makes 13 ingots from 7 ore and Pure Copper makes 15 from 6.
• Bottleneck relief — does it delete a dependency (water for ingots, Coal for steel, Quartz for silica) that otherwise forces a second production line?
• Self-sufficient loops — does it let one input sustain itself (the Recycled Plastic / Recycled Rubber / Heavy Oil Residue fuel chain) so you stop shipping raw oil around the map?

S-Tier — take these the moment they appear

These five change the math of your entire save, not just one building.

• Pure Iron Ingot Alternate (Tier 5): 7 × Iron Ore + 4 × Water → 13 × Iron Ingot in a Refinery (12 s). Against the standard 1:1 smelter that is roughly 1.86 ingots per ore and it shifts the work onto Refineries instead of Smelters.
• Pure Copper Ingot Alternate (Tier 5): 6 × Copper Ore + 4 × Water → 15 × Copper Ingot in a Refinery (24 s). About 2.5 ingots per ore versus the 1:1 baseline.
• Pure Caterium Ingot Alternate (Tier 5): 2 × Caterium Ore + 2 × Water → 1 × Caterium Ingot in a Refinery (5 s). Beats the standard 3:1 smelt while running faster.
• Pure Quartz Crystal Alternate (Tier 5): 9 × Raw Quartz + 5 × Water → 7 × Quartz Crystal in a Refinery (8 s). Roughly 2.33 crystals per 3-quartz versus the standard 3:1.
• Pure Aluminum Ingot Alternate (Tier 7): 2 × Aluminum Scrap → 1 × Aluminum Ingot in a Smelter (2 s). This is the only route that makes aluminum ingots directly from scrap, so it is the backbone of any aluminum build.

A-Tier — high-value loops and early alloys

• Heavy Oil Residue Alternate (Tier 5): 3 × Crude Oil → 4 × Heavy Oil Residue + 2 × Polymer Resin (Refinery, 6 s). The foundation of every fuel, rubber and plastic factory.
• Recycled Plastic Alternate (Tier 5): 6 × Rubber + 6 × Fuel → 12 × Plastic; Recycled Rubber Alternate (Tier 5): 6 × Plastic + 6 × Fuel → 12 × Rubber. Together they form the famous net-positive plastic/rubber loop.
• Tier-3 alloy ingots — Iron Alloy Ingot (8 × Iron Ore + 2 × Copper Ore → 15 × Iron Ingot), Copper Alloy Ingot (5 × Copper Ore + 5 × Iron Ore → 10 × Copper Ingot), Solid Steel Ingot (2 × Iron Ingot + 2 × Coal → 3 × Steel Ingot), and Fused Quartz Crystal (25 × Raw Quartz + 12 × Coal → 18 × Quartz Crystal) are available from your first drives and remove early ore and limestone pressure.
• Biocoal Alternate (Tier 3): 5 × Biomass → 6 × Coal and Charcoal Alternate (Tier 3): 1 × Wood → 10 × Coal — cheap early power fuel before you reach Coal nodes.
• Wet Concrete Alternate (Tier 3): 6 × Limestone + 5 × Water → 4 × Concrete in a Refinery (3 s). That is 1.5 limestone per concrete against the standard 3:1 — half the limestone for the most-consumed building material in the game, paid for in water you can pump for free. Concrete stops being a limestone bottleneck from your first drives onward.

Full alternate recipe reference (all 108)

All numbers are the exact values from the official wiki table, grouped by the tier that unlocks the recipe. “Produced in” shows the building and craft time.

Tier 2 — Early Logistics

Tier 3 — Basic Parts & First Hard Drives

Tier 4 — Coal Power & Steel

Tier 5 — Oil Processing

Tier 6 — Industrial

Tier 7 — Bauxite & Nuclear

Tier 8 — Higher End

Tier 9 — Endgame & Dark Matter

No alternate-recipe prerequisite (9 that enter the pool early)

Using this list in your base

Start your Hard Drive scans as soon as the MAM unlocks them and store unfinished drives in the Hard Drive library so the reward pool keeps shrinking — that raises the odds of seeing the S-Tier picks above. Pair the Pure ingot line with overclocked Refineries (see how to overclock machines) and read how to find alternate recipes for the scan workflow. For laying out the buildings these recipes need, the buildings guide and factory guide cover footprint and logistics, while how to handle node purity explains why pure nodes pair so well with the Pure ingot alternates. New players should also read the beginner guide before committing a base layout, and common mistakes lists the traps alt-recipe planning usually causes.