FIREWALL

Hostile packets are crawling along the circuit traces toward your core. You are the firewall.

Place PULSE turrets for fast single-target damage, NOVA for splash, CRYO to slow the flood, and RAIL to snipe the big ones. Every kill earns bits; spend them on new turrets or upgrades — or sell and rebuild when the wave composition changes. Call the next wave early for bonus bits if you're feeling confident. Every fifth wave brings a boss.

Three threat levels: SANDBOX (forgiving), STANDARD (a fair fight), OVERCLOCK (hardened malware, lean economy).

Controls: click a turret type (or keys 1-4), then click the board to build. Space calls the next wave. Full touch support on phones.

Made by Pixflor. Best score saved locally.