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martymc58

Mar. 04, 2026

Under rating threshold (show) No auto save. P.O.S.

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(-1)

n0n4m355

Jan. 30, 2026

Under rating threshold (show) Fun game, but be cautious when doing the math! The bank says "boosts x2.5", but this isn't accurate: it's really "adds 1.5 of base". So two banks don't give you (2.5)^2 = 6.25 of the output, they're just each worth 1.5 offices per adjacent office.

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(-2)

martymc58

Jan. 22, 2026

Under rating threshold (show) Sound effects would be cool. Especially when thing go badly. Warning horns blaring, explosions.

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(0)

Haodsi

Jan. 06, 2026

Under rating threshold (show) dud 10 year old game ,i never think this game gona be that old

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(1)

Haodsi

Jan. 06, 2026

Under rating threshold (show) this game make it imposible to send your import lol

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(0)

Nixian12

Nov. 03, 2025

Under rating threshold (show) yes.

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(0)

vladthemathman

Oct. 05, 2025

Under rating threshold (show) @chlorinate The guide has been archived by the Wayback Machine: https://web.archive.org/web/20230903145254/https://www.kongregate.com/forums/17013-reactor-idle/topics/562975-basic-beginner-guide

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(7)

exlux7

Sep. 14, 2025

Under rating threshold (show) goated

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(0)

narakerhe

Sep. 14, 2025

Under rating threshold (show) great game

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(0)

Stick3131

Sep. 09, 2025

Under rating threshold (show) I placed the gas burner, surrounded by level 28 generator 2s, and everything exploded. I did it in a way that every other tile in the area was a gas burner and every other tile was a generator 2, that way it would be like having one generator per. I saved up for weeks to get it. Everything exploded. 10/10 would recommend.

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(2)

chlorinate

Jul. 14, 2025

Under rating threshold (show) I'm looking for discussion of reactor design (for the 1-cell 4-cell 8-cell), with Generator 4 and Protactium levels. The Kongregate Forums are gone, and I don't see a Reactor Idle Discord channel. Does anybody know of a forum / wiki for good later game design ideas?

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(5)

turt99

Jun. 11, 2025

Under rating threshold (show) peak

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(1)

258ineedaname

May. 01, 2025

Under rating threshold (show) I can't believe I saved up 500 billion research points for days in hopes that the unlock with allow me to access what I desperately need, only to find what I needed cost 50 times 500 billion. This is nearing hostile levels of intentionally idle. I am simply not going to keep this window open for months to buy a single upgrade, to make use of the power generators I have already upgraded.

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(2)

dseriousgamer

Apr. 29, 2025

Under rating threshold (show) played a while ago and misplaced my save TvT Very fun game though!

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(3)

dawstewart

Apr. 24, 2025

Under rating threshold (show) j

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(1)

sluva

Apr. 19, 2025

Under rating threshold (show) power

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(1)

powermm2025

Mar. 28, 2025

Under rating threshold (show) How can I play as saved game from another computer? I thought after creating an account that I can access my game from everywhere

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(0)

alex8575

Mar. 26, 2025

Under rating threshold (show) very nice

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(0)

alex8575

Mar. 26, 2025

Under rating threshold (show) very nice

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(0)

VILExManiac

Mar. 23, 2025

Under rating threshold (show) Breaking out the calculator before upgrading a plant or removing a generator makes me feel like a power technician

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(1)

chlorinate

Mar. 01, 2025

Under rating threshold (show) as of today, the bonus clicks are not showing up (accumulating) at all for me. they've consistently worked for the past couple years. is there something different? i'm using firefox.

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(3)

laneinskeep

Feb. 24, 2025

Under rating threshold (show) hey

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(1)

LIGMA6942069

Feb. 24, 2025

Under rating threshold (show) hi

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(2)

SCRequiem

Feb. 21, 2025

Under rating threshold (show) this game has done irreparable damage to 10 year old me's psyche. 8 years later, and here i am, back to kongregate all just to play this godforsaken (affectionate) game again

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(11)

nimtz144

Feb. 14, 2025

Under rating threshold (show) I'm not sure how many times I've restarted this game, but I keep coming back to it.

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(2)

apples2apples777

Jan. 31, 2025

Under rating threshold (show) i must say i do love me some exponential growth

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(1)

chlorinate

Jan. 25, 2025

Under rating threshold (show) It would be good to be able to read the current amount of max heat in all types of elements. I'd be interested in seeing how much heat is in the isolation & water pipe cells, to gauge how much heat those cells are letting through / conducting to the adjacent cells.

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(1)

uploadsroblox1

Jan. 24, 2025

Under rating threshold (show) cool! all my data wiped!

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(1)

cutlegg

Dec. 28, 2024

Under rating threshold (show) suggestion for a tiny update: it would be nice to have +/- buttons for the isolation upgrade in the build mode for each expansion. so you dont have to pause the game for finetuning the system.

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(2)

Darklordsq

Dec. 21, 2024

Under rating threshold (show) slow but enjoyable

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(0)

cutlegg

Dec. 19, 2024

Under rating threshold (show) you sneaky bastard. :) you programmed it so the pause button doesnt react, when things escalate. at first i thought it was me not pressing it correctly, but it happens every time, lol.

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(0)

alexmurphymath

Dec. 18, 2024

Under rating threshold (show) fun

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(0)

cutlegg

Dec. 15, 2024

Under rating threshold (show) somehow the heat and water likes to flow more to the upper left than bottom right. making it impossible to have a symetric layout that is balanced. there is something wrong with the system. i guess its more of a challenge, but it is pretty annoying when you think of a layout and it get torpedoed by the imbalance. :/ is it a bug or is it a feature? very nice idle game, tho.

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(0)

Thiagoshadow

Nov. 27, 2024

Under rating threshold (show) I love kongregate and i love this game

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(3)

GavarKhai

Nov. 02, 2024

Under rating threshold (show) Wander, if you're still looking, it works like this: Generator I has no water. Gen II uses 1 water per 100 heat. Gen III uses 1 water per 200 heat. Gen IV uses 1 water per 300 heat. I think there might be some wiggle room in those numbers, but that's a good estimate to get you started.

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(6)

memelordanddrip

Oct. 26, 2024

Under rating threshold (show) nice idle :)

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(2)

Dinictis

Oct. 24, 2024

Under rating threshold (show) @Wanderduene 1 water=100 heat.

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(0)

Wanderduene

Oct. 23, 2024

Under rating threshold (show) ...Anyone know how much water helps a generator deal with heat? because i'm scared of re-designing my entire plant to incorporate it, just for it to constantly explode because i can't calculate it's heat-conversion-capacity anymore...

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(3)

breadthethird

Oct. 14, 2024

Under rating threshold (show) i enjoy carbon emissions

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(1)

KierenF1

Oct. 13, 2024

Under rating threshold (show) This is a great time killer of a game

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(1)

Candraedra

Jul. 31, 2024

Under rating threshold (show) @eatopo right click to sell a building

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(3)

oobe

Jul. 18, 2024

Under rating threshold (show) you know, I'm something of a nuclear scientist myself

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(1)

eatopo

Jul. 10, 2024

Under rating threshold (show) BRO I PLACED WIND TURBINES EVERYWHERE NOW I CANT PLACE A REASEARCH CENTERRRRRRRRRRRRRr

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(4)

Candraedra

Jun. 24, 2024

Under rating threshold (show) @anedkow you start with one tick per second as bae game speed.

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(1)

vnzolano94

May. 26, 2024

Under rating threshold (show) Can't believe it's been 15 years since i first played in this website, it hit me hard

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(3)

vnzolano94

May. 26, 2024

Under rating threshold (show) missing the old forums and chat

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(2)

anedkow

May. 10, 2024

Under rating threshold (show) Anyone know if the ticks bonus is increased by 1 so at max it is 6 ticks per second or it is 5 ticks on max upgrade?

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(2)

pikachuelias67

Apr. 05, 2024

Under rating threshold (show)

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(-6)

Max472829

Mar. 26, 2024

Under rating threshold (show) Why do wind turbi nes need to be rebought….

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(0)

kidbrother10

Mar. 25, 2024

Under rating threshold (show) cool

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(0)

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