Incubator Nine

Grow eight level-1 cultures into one level-4 creature in the central well before oxygen runs out. Tap a culture, then an adjacent active well to move into empty space or combine an equal culture. Fusion works only at the destination’s required temperature: level 1 needs WARM 2, level 2 needs COOL 1, level 3 needs HOT 3. Moving into empty space has no temperature requirement. Every move/fusion spends 1 oxygen. Cycle heaters shifts all three column temperatures and costs 2 oxygen. The current left/middle/right temperatures are shown above the wells. Only the nine inner wells are active. Preserve all eight units of culture mass and plan a cool-growth stage before the final hot hatch; temperature changes alone do not grow cultures. Keyboard: Tab and Enter/Space operate buttons; R restarts.