Defense Grid: The Awakening

If you think tower defense is just about plopping down turrets willy-nilly, let 'Defense Grid: The Awakening' school you in the art of alien repelling. This game turns your brain into a strategic command center, and suddenly, it's 2 AM, and you're mumbling about optimal tower placements. Fans are obsessed, and if you can't discuss the best use of temporal towers, are you even a fan? It's a staple in the 'Greatest Tower Defense Games of All Time'—debate over!