Win

Win's Space Invaders uses a wave-based structure where each cleared alien formation is replaced by a new one starting at greater baseline difficulty than the previous wave Later waves feature faster alien movement from the very beginning of the wave, shorter intervals between alien shots, and more aggressive formation descent per horizontal reversal Powerups dropped by aliens in later waves become progressively more critical to survival as raw formation speed exceeds what unassisted play can withstand for extended periods. Wave number is tracked across a session, and reaching higher wave counts contributes substantially to the overall score visible in local score history. Space Invaders is fully offline; no login or internet is required to advance through waves or view wave-count history.