If you're already a fan of the cellular management in Cytosis, get your immune system ready, because Cytosis: Virus Expansion is here to put your strategy to the ultimate test! This isn't just a little extra content for the base game; it introduces a layer of tension that can completely shift the momentum of a session. Now, besides focusing on your industrial production inside the cell, you'll have to deal with the arrival of three new biological villains: Influenza, Rhinovirus, and the dreaded Ebola.

The big twist lies in defense management. Throughout the game, you'll need to decide whether to spend your precious ATP to build up specific antibodies against these new threats. It's a constant tug-of-war between expanding your production and ensuring you don't get wiped out by an unexpected virus. When a viral attack hits, things get intense! All players enter a confrontation phase where luck and preparation collide: you roll your antibody dice based on your current health level and the immunity you've accumulated. The player with the strongest immune response walks away with extra resources, while those caught off guard end up losing what they've worked so hard to gain. It's that classic 'push your luck' moment we all love. In short, this expansion adds a layer of risk and crisis management that makes the base game much more dynamic and unpredictable. If you enjoy that adrenaline rush of balancing your economy with pure survival, this expansion is exactly the upgrade your tabletop collection needs!