Keep the plate sterile
Microbes crawl from the green IN gates to the red OUT gates by the shortest open route. Wall them into a long maze with cheap Swabs and line it with heavier compounds. You can't seal a route.
Spores fly over walls. Fission cells split when hit. Burrowers dig under a single compound. Biofilm leaves slime that halves the fire rate of nearby compounds. Quorum swarms speed up in crowds. Mutants grow resistant to whatever keeps hitting them.
Gel is a floor puddle that hurts and doesn't block. Agar walls are free but dissolve after 3 waves, 10 at a time. Lysozyme boosts the 8 compounds around it.
A pink breach in the rim is announced a wave ahead and stays open for one wave. Nothing flies in through it. Upgrades and sales take time.
Paused
Building, upgrading and selling are locked while paused.
Microbes crawl from the green IN gates to the red OUT gates by the shortest open route. Wall them into a long maze with cheap Swabs and line it with heavier compounds. You can't seal a route.
Spores fly over walls. Fission cells split when hit. Burrowers dig under a single compound. Biofilm leaves slime that halves the fire rate of nearby compounds. Quorum swarms speed up in crowds. Mutants grow resistant to whatever keeps hitting them.
Gel is a floor puddle that hurts and doesn't block. Agar walls are free but dissolve after 3 waves, 10 at a time. Lysozyme boosts the 8 compounds around it.
A pink breach in the rim is announced a wave ahead and stays open for one wave. Nothing flies in through it. Upgrades and sales take time.