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Criticality

Mechabit

A short incremental game about splitting atoms and going critical.

CasualIndie

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Criticality is a casual incremental clicker game about splitting atoms and creating chain reactions.

Click. Split. React. Dominate the chain reaction in a casual incremental blast of cold-war chaos! 

You’re a hapless engineer caught dead-center in Cold War politics, stuck with a rickety reactor and a whole lot of very volatile atoms. No fancy degrees or top-secret training, just your screwdriver, a dream, and a ticking clock of bizarre, high-stakes situations.

Here’s how you go nuclear (without blowing up the lab… probably):

  • Click to Unleash Neutrons - Tap to fire a single neutron, watch atoms absorb, split, and detonate in a cascading chain reaction. The longer the chain, the bigger the points haul, simple as that (until the atoms start getting tricky).

  • Upgrade your reactor, Unlock Chaos - Spend your hard-earned points for game-changing upgrades that supercharge your reactor. Unlock new mechanics, boost neutron output, and turn tiny fizzles into earth-shaking blasts that rack up points faster than you can say “critical mass.”

  • Chase the Ultimate Reaction - Push your reactor to its breaking point, hit critical mass, and reap the rewards… if you don’t accidentally trigger a meltdown first. Every click brings you closer to nuclear glory (or a very awkward conversation with your supervisor).

Go Criticality now – and remember: when brute force isn't working, you're not using enough of it!

Community Activity

  1. CriticalitySteam patch notes
  2. CriticalitySteam announcement

    UKIE - For One Night Only

    Criticality is part of UKIE's For One Night Only! Check out the rest of these great UK made games here: https://store.steampowered.com/curator/46115354/sale/ForOneNightOnly2026…

  3. CriticalitySteam patch notes

    Patch

    Clear radiation cloud when a new round starts

  4. CriticalitySteam patch notes

    Patch

    Fixed a regression bug in rocket lab bonus effects

  5. CriticalitySteam announcement

    More Content!

    Hi folks, We've got another huge update for you! We've added another more positive ending to the milestones screen! (along with a new achievement for completing it) Unlock it by…

  6. CriticalitySteam announcement

    Update incoming

    We've been hard at work and I just wanted to keep you informed about a new content update in the coming weeks including new atoms, new skills, new prestiges, new achievement, a…

  7. CriticalitySteam patch notes

    Patch

    Maxed prestige upgrades now move to the end of the list

  8. CriticalitySteam patch notes

    Patch

    Fixed the prestige button localisation Added confine mouse toggle key - L

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