STRAIN

STRAIN is a tense strategy-puzzle about a fight for the planet between two forces: the VIRUS and the CURE.

Pick a side. Spread a new strain across the world — or stop the epidemic before it's too late.

Crises erupt all over the globe: panic, riots, mutations, city collapse, lab breaches. Every crisis is an arena. Link nodes into chains, stack combos x2, x3, x5, catch PERFECT CHAINS and cascades — and decide a region's fate with a single swipe.

As the VIRUS you spread the infection (SPREAD). As the CURE you contain the outbreak and synthesize a vaccine (CONTAIN). One world, two perspectives, two playstyles.

Capture 7 regions on a living 3D globe and hold your grip. Upgrade your lab: infectivity, lethality, resistance, mutation — or efficacy, coverage, production, immunity. Dozens of upgrade cards reshape your style and the power of your chains.

Come back daily for rewards, complete quest chains, climb the leaderboard. Energy regenerates over time and passive income ticks even offline — but the world won't wait.

There are no lucky wins here. Only the precision of your chains and cold calculation.

Who wins this war is up to you.