Reaction Defender — Tower Defense (GCSE Chemistry)

A chemistry tower-defense game. Answer AQA GCSE Chemistry questions to generate energy, build defence towers, and stop waves of contaminant particles from reaching the reactor Core. A five-sector campaign with a storyline, plus an endless mode — pick your cadet name and avatar, choose Foundation, Higher or Triple difficulty, and climb the leaderboard. Complete the campaign to earn the Core Guardian badge.