Circuit Keep

In Circuit Keep, the intrusions walk straight over your towers. They pathfind from breach points across an open grid toward your CORE, and the only thing that turns them aside is a wall. So you build the maze yourself, line it with damage, and force every wave down a path you chose. Some of the intrusions will have other ideas. No preset routes, no race against the clock, and the pause button is always there when you want to sit and think.

BUILD YOUR MAZE

Use FIREWALLS to reroute INTRUSIONS to where you want them to go. Your towers run on power, so where you place them matters as much as where they shoot.

INTRUSIONS THAT FIGHT BACK

Some INTRUSIONS do more than rush the CORE. Each one breaks your defenses a different way.

SCRAMBLER broadcasts a field that drags down the fire rate of every module near it. PARASITE skips your CORE to drain your CHARGE NODES.

PHASE turns intangible and slides straight through your walls. HOPPER vaults over walls and even air gaps.

BREAKER exists to eat your walls. KERNEL, a boss, forks child intrusions to overwhelm your defenses.

FOCUS FIRE

Mark any intrusion with a crosshair and every damage module in range promotes it to the top of its target list.

OVERDRIVE & OVERCLOCK

OVERDRIVE to permanently boost the damage of an entire module family.

OVERCLOCK to speed up your economy, cooldown, and modules for a short window.

HAND-CRAFTED THREE ACT CAMPAIGN, AND ENDLESS MODE

Three acts and 40+ hand-crafted levels introduce matchups one module and intrusion at a time.

Struggling against a level? Buy permanent campaign upgrades** on the RESEARCH GRAPH.**

Levels too easy? Switch to** HARD** mode any time.

Want to see how far you can go?** Enter ENDLESS** mode with every module and intrusion unlocked.

FEATURES

• No fixed paths. Intrusions walk over your modules. The maze is whatever you build.
• Open palette. Every module you've unlocked is available every wave. No limited loadout or RNG drafting.
• Branching upgrades. Two upgrade paths per module, each ending in its own payoff: crit, knockback, pierce, and more. Switch paths any time to adapt.
• Four damage flavors. KINETIC, THERMAL, ELECTRIC, and CORRUPTIVE, with status effects layered on top. Matchups matter.
• Unique intrusion abilities. Intrusions can ignore your defenses, break through walls, and even stop your modules from operating.
• Plenty to master. 12 module families, 12 intrusion families, 7 elites, and 3 bosses.