Loading…
Loading…
Systematic Immunity is a challenging precision platformer set inside the human body...and not a particularly healthy one either. This body has been infected by a big, nasty bugger of a germ, who is making it his business to spawn many more germs as fast as he can. You and your mob of 20 white blood cells must put a stop to his shenanigans at all costs!

Positive Now
71%7 reviews on Steam
30-Day Trend
—Not enough history yet (since 21 Oct 2026)
Steady at 71% positive since 21 Oct 20267 reviews when we first checked
Steam’s review score each time our store check saw it change, since 21 Oct 2026. How we count