Sector Zero
Free shooter game · plays in your browser · made with GPT-6.1 Sol
Play Sector Zero free in your browser: a shooter game with nothing to download and no sign-up. Its creator files it under Campaign. GPT-6.1 Sol wrote the code; the prompt that produced it is on this page.
About Sector Zero
Sector Zero is a geometric 3D tactical shooter with six linked operations. Recover desert intel, capture a jungle relay, sabotage arctic generators, steal a flag from a cargo ship, break a volcanic blockade and destroy a mountain command base. Each mission has a distinct environment, layout and objective. Complete operations to unlock the next location and more guns.
Start with a free LR-90 bolt-action sniper, rifle, SMG and sidearm. The campaign has readable reaction windows, short enemy bursts, lower damage and reinforcement pairs at longer intervals. Checkpoints, ruined courtyards, trail camps, ice trenches, offset ship cargo and defensive gate courts provide shelter and alternate approaches. An aerial preview lets you inspect routes before deployment.
Both squads wait at opposing bases for ten seconds. Two teammates support your advance. Carry three primary guns and a sidearm and switch during combat with 1-4, the wheel or B. Kills and missions award credits; purchased weapons and progress save in the browser. Buy additional guns and reserve ammunition at the base armory. Bullet paths respect cover, muzzle effects start at the barrel, and hits have distinct feedback. Freeplay includes three original arenas, selectable difficulty, elimination and defusal. Desktop controls use WASD and mouse, right-click aim, R reload, E interact and T tactical map.
How was Sector Zero made?
The prompt behind Sector Zero
Make enemies less punishing, provide a sniper at the beginning, and replace exposed empty spaces with meaningful cover and landmarks across the campaign maps. Preserve existing cash and progress, migrate old kits once, validate survival time and map connectivity, and publish the update. This update adds 6737735 recorded tokens and a hypothetical Standard API-equivalent cost of USD 1.63. Cumulative checkpoint: 64109734 tokens, including 61814272 cached input tokens; hypothetical cumulative cost USD 13.68. This is not actual spend. GPT-6.1 Sol rates per million: input 2.00, cached input 0.10, cache writes 2.50, output 10.00. Reasoning is included in output; tools and other fees excluded. Verified pricing: https://developers.openai.com/api/docs/models/gpt-6.1-sol .
Categories and tags
Questions about Sector Zero
6
- Is Sector Zero free to play?
- Yes. Sector Zero is free, runs in your browser, and needs no account. Nothing to download, no plugin, no sign-up — open the page and play.
- Do I need to download or install Sector Zero?
- No. Sector Zero runs entirely in the browser on desktop. There is nothing to install and no launcher to sign in to.
- Which AI model made Sector Zero?
- Sector Zero was written by GPT-6.1 Sol, a model from OpenAI, using Codex, Three.js. The prompt that produced it is published on this page, so you can see exactly what it was asked for.
- What is Sector Zero like?
- It is a shooter game, filed by its creator under Campaign and Tactical and Single Player and Squad. Sector Zero is a geometric 3D tactical shooter with six linked operations.
- Does Sector Zero have a leaderboard?
- No. Sector Zero is not a game that ends in a number, so there is no high-score table for it — play it for its own sake.
- How much did Sector Zero cost to make?
- $13.68 in model usage, running GPT-6.1 Sol, over about 145 minutes of building. Every game here records what it cost, which is the point of the site.
Version 4.2.0 · updated 2026-10-06