My Fire is Bigger Than Yours: 100% Guide

Hi, I'm Vook, a middle-aged coder who likes playing games a little too much.

Today I am walking through My Fire is Bigger Than Yours from my own 100% run — Classic mode, both map phases, the moon stretch, and buying every upgrade. I will miss an optimal pick order here or there; this is how I scaled fire and lightning, not a spreadsheet sim. If your achievement pops at a different fire level, leave a comment — I read them.

You drag wood into fire, survive rain, stack upgrades, then stop clicking once lightning clears the floor for you. Late game is layout Tetris — trees, spawners, and moons burning because the fire is bigger than your planning. Leaf pages where people stall:

• Beginners' tips — first hour, rain, trees, mis-clicks
• Play online — browser build, play on this site
• Moon phase guide — cultists, mechanics, multi-moon layout

Chapter order:

1. Phase I — Classic start and first upgrades
2. Phase II — Lightning pivot and Phase One complete
3. Phase III — Prestige, cultists, Phase Two
4. Phase IV — Moon, mechanics, comets (detail: moon guide)
5. Phase V — Burn the Sun and 100% buyout

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What this game is

Incremental fire sim: catch or drag fuel into the fire, earn money, buy upgrades between rounds, survive periodic rain. Classic mode is the 100% path on my run.

System	What it does
Fire level / size	Main power stat — screen-filling fire is normal late
Rain	Shrinks fire — rain shield and round timer help
Electric fuel	Lightning chains — eventually clears wood without burning
Explosive / fireworks	Synergy with lightning for chain reactions
Cultists	Auto-carry fuel after Phase One — placement matters
Prestige points	After Phase One — multiply fire and fuel earnings
Moon phase	New map layer — spawners, mechanics, super moons

One rule: When lightning can clear the floor, stop hero-clicking wood — invest in chain count, range, and multipliers instead.

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Phase I — Classic start and first upgrades

1. Classic mode — drag wood into fire for cash.

2. Cursor size + rain shield first — aiming and rain are the real early bosses.

3. Spawn faster + earn more money — economy before fancy fuel.

4. Plant trees near fire for passive wood — not inside burn radius.
5. Shield + double money when affordable.

6. Multi-catch (two wood at once), faster fire, more spawners.

7. Electric fuel beside fire — multiplies earnings; add chain earnings.

8. Fireworks spawn rate + another cursor size bump.

9. Explosive fuel + extra spawners — catch flying wood to detonate.

10. Skill tree: wood spawn time, more chains, cheapest upgrades; rearrange layout for visibility.

Mistake I made: maxing fire size before rain shield — one rain phase erased ten minutes of growth.

More first-hour habits: beginners' tips.

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Phase II — Lightning pivot and Phase One complete

When to pivot off clicking

1. Max fire toward 2.3 + shield — aim for ~$600 a round mid-push.
2. Stack electric spawners and spawn rate.
3. Firework chance + fire size — still clicky here.

4. Prioritize explosion size + cursor size for spread control.
5. Round timer upgrade — deletes rain so you can play offense.
6. Buy cheap explosion size + earnings bonus whenever listed.
7. Lightning focus: upgrade lightning to destroy wood without burning — less floor clutter.
8. Lightning multipliers — double wood value; pair with explosive spawners.
9. Max chain count + range — lightning triggers explosions in a chain reaction.
10. Idle transition — lightning clears everything; fire becomes backup.

Achievement	Trigger
Fire level 11+	Level 10 is not the cap — push to 11 for the pop
100 electric chains (one round)	Lightning build — 100 chains active at once

Phase One capstone

1. Keep alternating fire value and lightning — fire covers screen; lightning does damage.
2. Save for 100k multipliers + round timer + shield.
3. Rearrange trees/spawners when upgrades dry up.
4. Survive rain without clicking once lightning is online.

5. Complete Phase One — ~500k earned; map expands; fire can grow much bigger.

6. Prestige points unlock — multiply fire and fuel earnings; stacks with electric/explosive multipliers.

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Phase III — Prestige, cultists, Phase Two

1. Place first electric spawner (two fuels at once) — upgrade speed and range.
2. Cultists — trees close to fire so walks are short; upgrade cultist speed.

3. Watch fire size — trees burn when fire outgrows the layout; move fuel lines outward.
4. More lightning chains + electric spawners.
5. Explosion size, fireworks parts, double money.
6. Fire level 15 → keep fireworks + lightning online.
7. Fire level 20 → achievement pop; $1M+ per round possible.
8. Pre-run shop: fire size, cultist carry, fireballs.
9. Cultist upgrades win Phase Two — max time, more wood, explosion size, carry capacity, rebuild destroyed spawners, more cultists.
10. Move buildings away from fire — spawners and trees burn if lazy.
11. Buy everything under 1M — lightning, explosions, fireworks.
12. Phase Two complete — survived rain at fire level ~54, ~40M earned; split spawners for moon prep.

Achievement	Trigger
$1 million in one round	Mid/late Phase Two with cultist economy

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Phase IV — Moon phase

Phase Two finish unlocks the moon layer — spawners up there, cultists walking farther, mechanics repairing burned structures. Full layout notes: moon phase guide.

Short route:

1. Place moon spawners — click spawners to force spawns early.

2. Moon speed, lightning, electric fuel — chain reactions still core.

3. Fire covers moon but burns props — hire/mechanic repair time + cultist shield.
4. Two extra moons on outer rings — keep them out of burn path when possible.
5. Super moon, comet, cultist upgrades — buy cheap chains between expensive moons.
6. Fire level 115 / 250B fire size territory — lag starts; see Phase V.

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Phase V — Burn the Sun and 100% buyout

1. Defeat the Sun — fire larger than the sun; achievement pop.
2. Simplified physics — settings toggle if particles melt your PC (may shave earnings — I toggled it anyway).
3. $1 trillion in one round — achievement; fire covers entire screen.
4. Fire level 400+ — combat spawns lag hard; keep buying cheap upgrades between waits.
5. Fire level 500–656 — trillions per run; map grows but you cannot see it under fire.
6. Buy all remaining upgrades — final achievement; 100% complete.
7. Last purchases: everything expensive left in the shop — two-upgrades-left moments mean you are done after the next rain.

Achievement	Trigger
Defeat the Sun	Fire bigger than the sun
Earn 1 trillion in a round	Late buyout phase
100% / all upgrades	Purchase every shop upgrade

Try the browser build between sessions: play online.

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Achievement checklist

Achievement	How
Fire level 11+	Exceed level 10 cap
100 electric chains (one round)	Lightning chain build
$1M in one round	Cultist + lightning Phase Two
Fire level 20	Mid Phase Two milestone
Defeat the Sun	Endgame fire scale
$1T in one round	Post-sun economy
Buy all upgrades	100% completion

Stuck on rain, trees burning, or moon repairs: beginners' tips · moon phase guide.