Mycopunk Upgrade Grid Guide: Hex Shapes, Pattern Infusion, and Rotation

Why the Mycopunk Upgrade Grid Matters More Than Your Loot

The Mycopunk upgrade grid is the reason a $15 co-op shooter keeps showing up in conversations about build-crafting. Every weapon carries its own hex board, and every upgrade is a physical shape you have to fit onto it — not a stat line you simply tick. Get the geometry wrong and your best roll becomes dead space.

That distinction is why reviewers keep circling back to the Mycopunk upgrade grid long after the jokes and the fungus robots fade from memory. Pigeons at Play's creative director Liam Cribbs told Game Rant that the goal was to let players stack enough game-breaking modifiers on a gun to turn an SMG into a rocket launcher — but within a framework that stays "somewhat balanced."

This guide breaks down how the system actually behaves in version 1.0 (launched October 20, 2026, after a July 10, 2025 early access run): the shapes, the rotation gates, the infusion math, and the build order that wastes the least space.

How the Mycopunk Upgrade Grid Works

Start with the one sentence that governs everything: an upgrade is a pattern, and two patterns cannot share cells.

Each weapon has its own board, and employee abilities have their own upgrade grids too, per a community guide last checked on October 21, 2026. Upgrades drop as hex patterns — a single hex, a two- or three-cell line, an L or chevron, or a large block. You slot them without overlap, which means the real limit is geometry rather than slot count.

Two practical consequences follow:

• Efficient shapes beat strong shapes. A single-hex upgrade with decent stats is nearly always worth equipping because it leaves the rest of the Mycopunk upgrade grid usable.
• Large pieces go in first. Once small upgrades occupy cells, a five-plus-cell block has far fewer legal positions.

There's also a hidden order of operations. Hold CTRL on PC (or L3 on a controller) in the upgrade screen to see the sequence in which upgrades apply. When two pieces modify the same stat, later entries resolve on top of earlier ones.

Pattern shapes and what they cost

Data source: community upgrade guide, last verified October 21, 2026.

Rotation, Rarity, and the Level Gates

Rotation is the feature that makes the Mycopunk upgrade grid feel less like a jigsaw and more like a puzzle you can solve. Picking a piece up and reorienting it can free cells that were previously unreachable — but the option unlocks in stages by rarity.

Data source: community upgrade guide, published October 20, 2026.

The Rotate binding's color tells you the highest rarity you can currently spin, and clicking your player level in the inventory shows the full milestone list. The practical takeaway: revisit crowded grids every time a new rarity tier opens, because one orientation change can convert a jammed board into a clean fit.

Rarity itself is a floor, not a ceiling. It defines the stat band a roll can land in — Standard, Rare, Epic, Exotic, and Oddity in the endgame — but two Epics of the same upgrade can differ noticeably, and a well-rolled Rare can beat a badly rolled Epic inside your specific build.

Pattern Infusion Is the Real Min-Max Lever

Infusion is where the Mycopunk upgrade grid stops behaving like a normal looter shooter. Instead of adding stats, it rewrites the shape of an existing upgrade by feeding it another upgrade's pattern.

Here's the loop, per the same community guide:

• Reach player level 13 to unlock Incursion, a timed underground activity that awards Antimass Substrate.
• Antimass also drops from other high-threat missions.
• Spend it at the Pattern Infuser in the H.U.B. to swap one upgrade's pattern for another's.
• The donor must come from the same weapon and the same rarity as the target.

Cost scales with ambition: cutting more cells off a pattern raises the Antimass price. As of the Freeze & Fester update, infusion also unequips the altered upgrade, so you have to place it back on the grid before it does anything.

The 1.0 scaling rule that changed everything

Version 1.0 rewired how infusion interacts with statistics, and it's the most contested change in the patch. Most upgrade stats now scale with how much the pattern size changed:

• Infusing a smaller pattern reduces most stats on the target.
• Infusing a larger pattern improves them.
• Upgrades whose stats depend on surrounding cells are exempt from scaling.

Shrinking is still correct when you need room for a build-defining block — just shrink the upgrade whose numbers you care least about. Infusing upward is the newer, sharper play: feed a big pattern into a cheap single-hex piece and it can become a stat monster while occupying one cell.

Turbocharges, Rolls, and Scrapping Discipline

Turbocharges sit on specific upgrades and exotics as a separate tier. Most of them change behavior rather than adding a percentage, which makes them conditional rather than universally good. Examples from the 1.0 notes: a Jackrabbit turbocharge that boosts flamethrower damage while you're ignited, a Globbler turbocharge adding +1 magazine size, a Photon Disc turbocharge raising elemental chance, and a Caustic Grenade turbocharge that makes heavy weapons hit harder.

The rule of thumb: read the trigger, not the headline number. A turbocharge that fires while airborne is dead weight on a build that never leaves the ground.

Before you scrap anything, hover the upgrade and hold Interact (E on default PC bindings) to see advanced stats, including the minimum and maximum roll values. Favorite the pieces worth keeping — favorited upgrades are protected from scrapping and float to the top of the list. And remember the crafting economy: undiscovered upgrades cost more Saxonite than duplicates, so discovery first, perfection later.

A Build Order That Fits the Mycopunk Upgrade Grid

Community testing converges on a straightforward sequence for new weapons:

1. Fill with single-hex and line upgrades first. Cheap, space-efficient, and your gun works immediately.
2. Add one behavior piece — elemental conversion, an extra projectile, or an on-reload effect — once cells free up.
3. Infuse only when the grid is full. Infusion is a space solution, not an early power spike.
4. Keep one finished grid per weapon untouched. Swapping weapons mid-run is common, and a half-built second board underperforms a complete low-tier one.

One more part of the grid economy that gets overlooked: ammo. Damaging enemies with one primary replenishes the other primary, and Pocket Reload pushes that ammunition into the magazine before the reserves. Pair a close-range gun with a longer-range one so both grids keep feeding each other. The Accelerator's 1.0 upgrade Confident Queen raises ammo capacity but disables Pocket Reload for its magazine — a clear example of a grid choice changing your weapon loop rather than a number.

While unlocking weapons, spend Armament Licenses to fill gaps in your pair, and check the Codex tab in your inventory for acquisition details on normal weapons and upgrades.

FAQ

Does every weapon have its own Mycopunk upgrade grid? Yes. Each weapon has a separate hexagonal board, and employee abilities have their own upgrade grids as well, so a layout that works on one gun won't transfer to another.

When can I rotate upgrades in the grid? Rotation unlocks by rarity against player level: Standard at 3, Rare at 8, Epic at 16, and Exotic or higher at 30. Revisit crowded layouts each time a tier opens.

Does pattern infusion always weaken an upgrade? Not always. In 1.0, shrinking a pattern reduces most stats while enlarging one improves them — but upgrades whose stats depend on surrounding cells are exempt from that scaling rule.

How do I get Antimass Substrate? Player level 13 unlocks Incursion, the timed underground activity that rewards Antimass, and it also drops from other high-threat missions. Spend it at the Pattern Infuser in the H.U.B.

For the game itself and current store details, see the official Mycopunk page on Steam.