Firewall — Weapon Guide, Applies Heat (AVS03)

What’s confirmed about Firewall

• Firewall is a weapon — one of the 24 weapons at launch, and one of six publicly named before release.
• Firewall applies Heat. This comes straight from the developer’s Demo Update 1.2 — not from rumor. The demo build’s own description makes the shape official too: “Creates a ring of fire around the player that adds stacks of Heat to enemies.”
• Heat is an official status effect, alongside Lag (applied by Paint) and Infect (applied by Bubbles). The system overview is in the status effects guide.

The name is pure theme: a firewall is the classic antivirus defense, and here it’s your offense — a burning perimeter in a game about surviving a malware outbreak.

What Heat does — the honest gap

The name and the applier are official; the combat math is not. No official source publishes Heat’s damage-per-second, duration or stacking rules. Everything else you’ll read about Heat numbers is speculation. This section gets filled with tested values — game version tagged — from September 28, 2026.

Firewall in a build

Firewall’s Heat application makes it a natural anchor for the driver and plugin systems — whatever multiplies status damage will multiply Firewall. Whether that makes it a top build is a launch-testing question, tracked in the builds hub. Its unlock condition is also pending verification.

FAQ

Is Firewall in the demo? The weapon mapping comes from Demo Update 1.2, so yes — Firewall’s Heat application is demo-stage verified. See the demo guide.

Does Heat stack with other status effects? Unknown. Whether Heat, Lag and Infect coexist on one target is pending testing.