Parasite Days

Parasite Days is a single player, pixelated simulation adventure set in a stylized microscopic world. You become a resourceful parasite surviving day by day inside living hosts. Navigate shifting organ biomes, adapt to changing conditions, and choose between stealthy coexistence or bold expansion. Evolve specialized traits, outsmart reactive immune defenses, and carve your own path through branching events. Every run offers new layouts, strategic tradeoffs, and a moody retro aesthetic that rewards clever planning and risk management.