Operation Cybernet

Four Operators. One machine uprising.

Fight beneath the glowing rings of an alien temple in Operation Cybernet, a free browser-based sci-fi arena FPS. Slide through incoming fire, launch into the air with your jetpack, and hold the line as the battlefield turns red.

Play free in your browser

SINGLE PLAYER: click Run game above to play directly on itch.io in fullscreen. Allow the initial preparation to finish, then enter the battlefield. Desktop Chrome or Edge with mouse and keyboard is recommended.

ONLINE MULTIPLAYER: use the server links below for co-op, PvP and Enemy Survival. These open the existing online game separately.

▶ PLAY SERVER A — RAILWAY / ASIA
Cloud-hosted. Start here.

▶ PLAY SERVER B — PC HOSTED
Available while the developer’s PC and tunnel are online. If unavailable, use Server A. This page carries the current PC-server link.

No installation required. Friends must select the same server and room. Allow initial loading and preparation to finish before entering the battlefield.

Choose your fight

• CO-OP: form a four-Operator fireteam with friends or AI helpers. The host chooses whether respawning is enabled.
• PVP: face other Operators in competitive combat.
• ENEMY SURVIVAL: configure the enemy lineup and build your own challenge.
• SINGLE PLAYER: take on the machine onslaught solo.

Keep moving. Hit hard.

• Jetpack fighting, sprinting and combat slides.
• Plasma weapons, the Inferno cannon, glowing blue pistol tracers and sticky grenades.
• Drill-wielding Strikers, airborne Sentinels and the towering Siege Walker.
• Escalating waves and Red Protocol.
• Optional motion radar, helmet views and adjustable mouse controls.

Meet the machines. Bring your squad.

Explore our roster in this matching promotional-art series. AI-assisted illustrations—not gameplay screenshots.

Striker and Sentinel

Raider and Bombardier

Siege Walker

Operators

Quick controls

WASD move · Mouse aim / fire · RMB aim · R reload
Shift sprint · Space jump / airborne jet boost · Ctrl + Shift + movement slide
1 / 2 / 3 weapons · G grenade · Tab inventory · Esc pause

Help shape the next build

This is an in-development public playtest. Performance and online latency may vary. When reporting a problem, tell us your server, mode, browser and what happened. Follow COLTENSTEELEGAMES for updates and leave your feedback below.

Cover: staged promotional artwork created with AI assistance, not a gameplay screenshot.

Join the Cybernet community

Discord — find a fireteam & share feedback
Facebook — community news
Instagram — art and gameplay

Behind the machines

IndieDB — development stories & gallery
Game Jolt — development showcase
GitHub — official marketing showcase