Feed A Mosquito Best Upgrades: What to Buy First

There is no single best first buy for every account in Feed A Mosquito, but the two full gameplay runs behind this guide followed one consistent rule that turns "what do I upgrade?" into a concrete answer: buy whichever system is currently blocking your highest-paying mosquito. Applied to the situations the runs actually show, that rule produced four documented decisions: the 35,000 broom before the life chair in the mid-early game, health-station tiers (the couch, the bed, a toilet IV at about 184 blood) before feeding top-tier mosquitoes, the 500,000 frying pan plus a bench at the roughly 500-health housewife gate, and a weapon step-up — the electric swatter, or the 1,000-Robux mosquito spray — once income plateaus around 300k per second.

Why weapons, health and feeding take turns as the priority

The three main cash sinks are not really competitors — they gate each other:

• Weapons decide which field mosquitoes you can defeat at all. Each tier up opens stronger, better-paying targets.
• The health station (the life gainer that starts as a chair) decides how fast your blood comes back. That matters twice over: the same health pool is your survival meter in field fights and the fuel for feeding your base mosquitoes.
• Feeding is the free multiplier. A new mosquito never earns its full rate — it starts at roughly a tenth of its maximum pay, so a mosquito worth 100 per second starts around 10 — and only feeding it to 100% unlocks the rest. In the documented runs, one mosquito's pay climbed from 10 to 26 to 50 per second while being fed, and a venomous mosquito went from 6 to 24 per second.

Feeding costs no cash, but it drains your own health, the better the mosquito the more life it drains, and you can only feed one mosquito at a time. Your regen rate therefore caps your income. That is why weapons and health alternate as the priority instead of forming one fixed ladder: a weapon step-up opens a new fight, health investment makes the fight survivable and lets you feed the new earner, and the loop repeats. The feeding guide covers the feeding loop itself in detail.

Verified costs and effects

Only figures actually shown in the runs are listed here — several shop prices were never shown, and they are marked as such rather than guessed.

The shop in one run also listed a pot, sword, axe, hoe, katana and scythe, and a kukri appears later in the run; those prices were not shown. The weapons list tracks the full lineup.

The station's mid-tier forms even differ between the runs — chair to toilet to a bathtub-shaped object in one, toilet to hot tub to bench, couch and bed in the other — so treat the furniture names as cosmetic. What you are buying is the regen step, and the 15,000 milestone is the only price anchored in both runs.

Mid-early game: the broom (35,000) before the life chair

At roughly 15,000–35,000 cash with the 5,000 shoe equipped, one run faced a 2,000-HP field mosquito it could not beat on current health. The buy order was explicit: the life-chair upgrade was planned, "but let's buy the weapon first because we'll need it. In this case, it's the broom." Then the priority flipped immediately after the purchase — "with this broom, I can defeat him. But I don't have enough health" — and the next cash went into the health station (the 15,000 life-upgrade milestone and the toilet's level-three upgrade).

So in this stage: buy the broom when damage is your blocker, and the moment damage stops being the blocker, switch to regen. The beginner guide covers this stretch of the game step by step.

When feeding stalls: couch and bed before any weapon

A mythical mosquito already paying 100k per second at base stopped a run cold: "I'm literally not doing it. It takes me apart... I need to get more health before I can do this." The response was not a weapon — it was the couch at 80 health per second, then the bed, and only then more feeding. After those step-ups, the run's demon mosquito was fed up to 220k per second. The same logic produced a toilet-IV upgrade to about 184 blood purely to prepare for feeding a large larva.

If your best earner drains you faster than you regenerate, no other purchase helps until the station catches up — weapons stay untouched during this phase. The base upgrades reference lists the station's exact steps.

The housewife gate: the 500,000 pan plus a bench

The housewife mosquito needed roughly 500 health — "probably a little bit more" — in one run. With about 500,000 banked and the base already earning heavily, the player weighed the 50,000 next weapon against the 500,000 frying pan, judged the difference affordable, and bought the pan, banking a bench (40 health per second) along the way. The pan then beat the housewife outright: "you don't mess with the pan."

At a boss gate like this, the documented answer is the boss-capable weapon plus the regen tier you can afford alongside — not one instead of the other. The boss fight guide covers the boss roster itself.

At the 300k/s plateau: electric swatter, then the Robux spray

With feeding maxed and total income around 300,000 per second — most of it from the demon mosquito — the run's own conclusion was "I need something stronger." The next cash tier listed at 1,500,000; the player bought the electric swatter instead, and regular mosquitoes became one-shots ("instant ticket to heaven"). The bosses melee could not crack — the Yeti mosquito above all — went to the mosquito spray: 1,000 Robux for 10,000,000 damage that "instantly obliterates everything in its path."

At a plateau, then: buy the next weapon tier your bank supports (the swatter in the documented run), and treat the spray as the Robux shortcut for the last few bosses. The best weapons roundup compares the ladder in more depth.

What the runs don't settle

All figures here come from two single-session gameplay runs, and they disagree in places you should know about before planning purchases:

• Mid-tier weapon prices differ. One run showed the baseball bat at 150,000 after the broom; the other showed a 50,000 next weapon before the 500,000 pan. The two ladders cannot be merged into one confirmed sequence, so read the shop in your own server rather than assuming a fixed ladder.
• Health-station prices beyond the 15,000 milestone were never shown, and the tier order differs between runs.
• Cash weapon damage numbers are never stated — only the spray's 10,000,000 is shown on screen.
• Plot expansion's cost and slot count were never shown, so it stays an "as needed" buy when your base fills up rather than a ranked priority.
• The 3-Robux price is confirmed only for the 3x blood boost; the 5x and 8x multipliers appeared without prices. Before spending Robux, check whether active codes cover any boost for free.

Every comparison here is worth rechecking after balancing changes and new additions — the updates page tracks those. Robux can also skip egg-hatch timers, but that is a time-saver, not a stat upgrade; the free 15,000-cash health route serves the same gating need. For the blood side of feeding income, see how to get blood, and for choosing which mosquito to pour that blood into, the best mosquito guide picks the top earners.