The upgrade grid, explained properly

Why your pattern will not fit

Because Mycopunk does not have a build system in the usual sense. It has a packing problem.

Your upgrades are mods with shapes, and you slot them into grids. Your weapon has a grid, your robot has a grid, and grenades take upgrades too. There is no reserved category, no minimum level per slot, no incompatibility rule. The studio's own summary is whatever upgrades you can fit in are fair game.

The consequence is brutal and simple: an upgrade's value is its effect multiplied by whether its shape fits. A two-cell upgrade with mediocre numbers that completes a row is worth more than a six-cell upgrade that forces you to leave four cells empty. Empty cells produce nothing.

Rotation is a level gate, not a setting

This is the answer to both how to rotate and why can't I rotate. Rotation is tied to an upgrade's rarity, and the gate opens as your player level climbs:

The system arrived with the December 2025 Ouroboros update and has not changed in 1.0. It exists because rotation is what lets large patterns interlock — which means your builds genuinely open up as you level, rather than just getting stronger.

If a Standard upgrade refuses to rotate on a fresh save, that is not a bug. You are below level 3.

Four ways to fit more into the same grid

1. Rotate before you discard. A shape that does not fit at 0° often fits at 90°. Check the gate table above first.
2. Use focusing to control what drops. From level 4, press the middle mouse button on a weapon in your inventory to focus it. Upgrades for that weapon become much more likely to drop. If your grid is starved of cells that suit your primary, focus the primary.
3. Spend Clearance Certificates deliberately. This occasional drop guarantees your next five drops are for your equipped primary weapon. Equip the weapon you are building before you open the next mission's rewards.
4. Chase the nine-upgrade achievement as a design exercise. Space Optimization requires fitting nine upgrades onto one grid. Even if you do not care about achievements, it teaches the packing mindset faster than any guide.

Pattern infusion: the level 13 fix for a bad shape

Reaching player level 13 unlocks the Incursion mission, which pays Antimass Substrate. You spend that at the Pattern Infuser in the HUB to copy one upgrade's pattern onto another.

The cost scales with how much you cut: the more cells you remove, the more Antimass it takes.

Since 1.0, infusion is no longer cosmetic:

Infusing a smaller pattern into an upgrade will reduce the effectiveness of most of its stats, while infusing a larger pattern will improve its stats.

The studio's September devlog adds one exception worth knowing: upgrades whose stats depend on surrounding cells are not affected by the size change. Those are the ones you can shrink "for free" in stat terms.

Turbocharging exotics

Exotic upgrades can be turbocharged with Strange Components, which adds a new ability — anything from a stat boost to new behaviour. This is separate from infusion: infusion changes the shape, turbocharging adds a property. 1.0 shipped eleven new turbocharges covering the Jackrabbit, Swarm Launcher, Gunship Cannon, Globbler, Photon Disc and three grenades.

Application order, and why two upgrades fight

1.0 added a diagnostic that most players never find: hold CTRL on the upgrade screen — L3 on a controller — to see the order your upgrades are applied in. The icons under the grid follow that order too.

This matters when two upgrades modify the same stat. If one adds a flat bonus and the other multiplies, the order decides the result. Before 1.0 you had to infer it; now you can read it.

What 1.0 changed in the grid

• Infusion scales stats with pattern size (above). The single biggest change to existing builds.
• A heap of upgrade tuning, aimed at underwhelming upgrades, including many new patterns. Some upgrades that never earned a slot in Early Access may now deserve one.
• Employee upgrade trees start at Rare. Standard employee upgrades now drop randomly from any source instead.
• Tree stats are randomised per save, rather than identical for every player. Two people comparing a "best employee build" may be comparing different numbers.
• Seven new upgrades for existing weapons, including Charging Port (Plate Launcher, Epic) and Subzero Energy (Cycler, Epic).
• Cryo upgrades. The Freeze and Fester update added four — Ice Cube, Permafrost Wave, Splinter Virus and Ice Skates — all activated by holding Q, and you can equip one at a time.

Is there an upgrade grid solver?

No official one, and an unofficial solver would not be trustworthy. The grid is a small packing problem with rotation, so a solver is technically possible — but the input (which upgrades you own, at which rarity, with which patterns) changes after every run, and any tool would be stale within a patch.

The practical method is faster than a tool: sort your available upgrades by cell count, fill the awkward corners first, and keep one large pattern slot open for the upgrade you are actually building around.