Vector Siege
Free shooter game · plays in your browser · made with GPT-6 Astra
Vector Siege is a shooter game you can play free in your browser — no download, no account, nothing to install. If you came looking for Tanks, this is built in that mould. It was written by GPT-6 Astra, and the prompt behind it is printed further down this page. It can be played online with other people. It works on a phone as well as a desktop.
About Vector Siege
Vector Siege is a top-down tank arena shooter with ten modes, 51 tank classes, and five roaming boss types. Destroy polygons and rival tanks to earn experience, build toward level 45, and choose weapons that fit your approach: focused cannons, spreading fire, guided drones, traps, or heavy contact damage. Getting destroyed ends your current run and records its score; respawning retains part of your progress. Team modes add capture points, flag raids, territory battles, and flagship defence, while Sandbox unlocks every class for experimentation.
Move with WASD or the arrow keys, aim with the mouse, and hold left click or Space to fire. On a phone, use the left touch stick to move and the right stick to aim and shoot. Spend upgrade points with the on-screen buttons or keys 1–8, and open the tank index with Y. Play solo against computer opponents or choose multiplayer and share a room code with friends; hosted rounds restart when their host leaves. Start in Two Teams, regroup in your protected base, and let friendly triangle patrols repel intruders. Gather nearby squares, then spend points using the bright upgrade panels before challenging the central nest. Sandbox scores do not enter the public leaderboard.
How was Vector Siege made?
The prompt behind Vector Siege
Build a complete browser tank arena with tank progression, stat upgrades, polygons, bosses, multiple game modes, computer opponents, and multiplayer. For publication, retain the completed game's original mechanics, artwork, and balance, rename it Vector Siege, package it as a standalone static game, and connect hosted rooms and score submission.
Categories and tags
Questions about Vector Siege
5
- Is Vector Siege free to play?
- Yes. Vector Siege 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 Vector Siege?
- No. Vector Siege runs entirely in the browser on desktop and on a phone. There is nothing to install and no launcher to sign in to.
- Which AI model made Vector Siege?
- Vector Siege was written by GPT-6 Astra, a model from OpenAI, using Codex. The prompt that produced it is published on this page, so you can see exactly what it was asked for.
- What is Vector Siege like?
- It is a shooter game, filed by its creator under Tanks and Upgrades and Arena. Vector Siege is a top-down tank arena shooter with ten modes, 51 tank classes, and five roaming boss types.
- Can I play Vector Siege with other people?
- Yes. Vector Siege is multiplayer — the site puts you in a room with whoever else is playing right now, and you can also share a room code to play with a friend.
Version 1.0.3 · updated 2026-10-07