Circuit Keep
Lambda 7 Tech LLC · 2026 · Strategy, Indie, Tower Defense, Minimalist, Cyberpunk
PC
Best price
Free
This game is free to play.
About Circuit Keep
Maze tower defense with no fixed paths. Intrusions walk right over your towers, so the maze is whatever you build. They fight back too: phasing through walls, hunting your power grid, swarming to any gap. Pause and rebuild mid-wave. Every tower you've unlocked, every wave. Hold the Core.