Artificial Intrusion is a tower defense game played on a pair of glowing CRT monitors. Rogue AI, drawn as tiny pixels, floods the network along winding paths toward THE_INTERNET at the center of the map. Place defenses, survive every wave, and keep your Uptime above zero.

Between runs you spend Packets on a sprawling radial skill tree, then reconnect and push deeper into the net. Ten network nodes each bend the rules in their own way, and a sentient boss process is waiting to shout your defenses offline with “IGNORE ALL PREVIOUS INSTRUCTIONS.”

A run takes about 3 to 8 minutes. Lose, recompile, patch the tree and try again.

• 10 network nodesEach with its own condition and phosphor color: Packet Loss, Firewalled tiles, Viral surges, Overcast range, High Latency, Deep Line, Overheat, Reroute and more.
• Six defensesFirewall, CAPTCHA, Honeypot, Corruptor, Ping and the famously useless robots.txt, each upgradeable during a run.
• A 48-node radial skill treeSix keystones and five Build Set slots to save your favorite setups.
• Pixels that fight backCrawlers, Scrapers, Botnets, Token Swarms, LLMs, Hallucinations, Adversarial inputs and the SENTIENT boss.
• Hands-on player actionsTrace a pixel for bonus damage, call waves early to Prefetch bonus bandwidth, and unlock Auto-Update.
• DEAD INTERNET THEORYEndless mode takes you past wave 20, with Endless bosses like the Paperclip Maximizer and Model Collapse.
• ZERO-DAY challengesA harder mode for every node, plus 30 node goals and 30 Steam achievements.
• A full CRT presentationCurved glass, scanlines, bloom and per-node phosphor colors, with settings to tone it all down.

Real 1920 × 1080 captures from the game. Click one to see it full size.