Mission board optimiser

1. How the board actually works

You get 3 missions a day from a board of 6, plus one free refresh.

Every mission pays out 4 reward slots. Each slot independently rolls one of the six resources at 1 in 6 odds, so a mission can roll four of the same thing or four different things.

Why the amounts are not the interesting part

The amount is not random. This is the part people get wrong. Each resource has a fixed base amount set by the mission's level — a goo slot on a given mission always pays the same number. So a mission is never "a big one" or "a small one": the only thing that varies is which six resources its four slots land on.

Mission level comes from your Hammer Thief level, which unlocks a bracket of levels the board can roll from. Level moves the base amounts by roughly 1% per level, and your bracket only spans 6–10 levels, so level is worth a few percent at most. The reward mix is what matters, by a mile. Goo is the one exception worth knowing about: it is a small stepped integer rather than a smooth curve, so it can jump from 6 to 7 to 8 inside a single bracket.

Because the board can roll any level in your bracket, the per-slot figures below are averages across that range. The range is shown next to each one.

2. Your setup

Hammer Thief level

Goo bonus % — upgraded in 5% steps, caps at 100% (= double goo)

What one slot pays you

A range means the mission's level decides which end you land on. Bonus applies to goo only, and changes what you collect, not which missions are worth running.

3. How much you care

Rate each resource 0–10. This is value per slot, not per unit: "how happy am I to see this land in a slot, compared to the others?" Everything below is recalculated live.

4. Scoring a mission

Score a mission by adding up the ratings of its four slots, using the numbers you just set — . That is the whole calculation. Highest possible is , lowest is 0.

Two examples, showing what each slot pays and then the score it works out to. Amounts are the top of your bracket's range.

5. Your strategy

The bar a mission has to clear rises as you spend your three runs, because a fresh board's best pick is worth more than its third-best pick — so the refresh should buy you a fresh first pick, never a fresh third pick.

Step by step

6. Check a mission

Pick the four slots you're looking at:

7. What you'll average

Goo per day

–

Goo per week

–

7 days, 21 missions

Assumptions and sources

Base amounts and level brackets read from MissionRewardLibrary.json; level brackets cross-checked against the in-game Refresh Info table; board size, slot count and daily energy from MissionBaseConfig.json.
Each of the four slots is assumed to be an independent, equally likely roll across the six resources. The refresh is assumed free and to replace all six missions without costing you a run.
Mission levels are assumed uniform across your bracket. Board-to-board level differences are ignored in the strategy because they are worth ~1% per level — if two missions have identical rewards, take the higher level one.
Daily figures come from 80,000 simulated days playing the strategy above.
Per-slot amounts are the mean across every mission level in your bracket, so they are not values that appear verbatim in the config — the range column shows what a single mission can actually pay.
The goo bonus scales what you collect, not the bars. Rate goo higher if you want the strategy itself to chase it harder.
Hammer Thief level converts to the in-game stage label as world = floor((level−1)/10)+1, stage = ((level−1) mod 10)+1, so level 100 is stage 10-10.