Faultline

Break the machine. Shape the next.

Faultline is a free arena shooter about dismantling evolving war machines. Every victory leaves a blueprint for the next encounter: damaged structures return rebuilt, new limbs take shape, and inherited defenses respond to how you fight.

• Ten escalating bosses: from a compact opening frame to a sprawling mechanical behemoth.
• Choose your approach: use unlimited cannon fire or commit to a heat-limited cutter.
• Make every cut matter: remove an outer weapon cluster or sever a shoulder to drop its entire branch. Two shoulder cuts expose the core.
• Interrupt the machine: cyan power cells disable connected weapons and create an opening.
• Keep moving: read attack warnings, manage three hull charges, and dismantle the machine before overdrive escalates.

Controls

Play in a desktop browser. Keyboard and mouse are recommended.

Move	WASD or arrow keys
Aim	Mouse
Cannon / Cutter	Left / right mouse button
Precision movement	Hold Shift
Pause / Controls / Audio settings	Escape
Mute / Reduced motion	M / F
Restart expedition	R

Use the pause screen for separate music and effects levels, input help, and reduced-motion options. Best scores and settings are saved in your browser.

Credits

Music: Shattered Alloy — Made with ElevenMusic.
Sound effects edited and layered from Kenney and Sonniss recordings. Full source notices are included with the game.
Procedural visuals and development assisted by OpenAI Codex.