Circuit Keep (Demo)

The intrusions walk straight over your towers. Firepower alone won't stop them. The routes they take are yours to build.

Circuit Keep is maze tower defense with no fixed paths. Intrusions pour in from breach points and pathfind toward your Core across an open grid. You wall that grid into the maze you want, line it with damage, and force every wave down a path you chose. There are no preset routes and no race against the clock. Pause whenever you want to think, and rebuild mid-wave when a better idea hits.

Walls are only half the puzzle. Everything that deals damage runs on power, routed from your Core and broadcast by your CHARGE NODEs, so the maze you carve and the grid that feeds it have to be designed together.

What's in the demo

• The campaign's opening levels, from your first FIREWALL through the CHAIN ARC contract
• Full mazing, branching module upgrades, and the open palette: every module you've unlocked, every wave
• Plays with mouse alone, with keyboard shortcuts if you want them
• Windows

Intrusions that fight back

• SCRAMBLER broadcasts a field that drags down the fire rate of every module near it
• PARASITE ignores your Core at first, hunting your CHARGE NODEs to siphon your income
• PHASE turns intangible on a cycle and slides straight through your BARRIERs
• BREAKER exists to eat walls, and takes your BARRIERs apart faster than anything else
• SWARMs hunt as a network: the instant one finds a clear path, the whole wave snaps onto it

The full game, launching 2026

The full game is a three-act campaign of 40+ levels that introduces matchups one family at a time, with NORMAL and HARD difficulties you can switch between anytime, each keeping its own progress and stars. Past the campaign sit a RESEARCH GRAPH of permanent upgrades and an ENDLESS mode that escalates until the lattice finally falls. All told: 12 module families against 12 intrusion families, 7 elites, and 3 bosses.

Wishlist Circuit Keep on Steam