BLOCKHEAD
Free action game · plays in your browser · made with Opus 5
BLOCKHEAD is an action game that loads straight in the browser. Free to play, no install, no registration. It sits across arcade and shooter as much as action. Opus 5 wrote the code; the prompt that produced it is on this page.
About BLOCKHEAD
A top-down wave shooter in the spirit of Sean Cooper's Boxhead. There is no shop and nothing carries over: every run starts with a pistol, and the only currency is how fast you kill. Four chained kills raise your multiplier, and every new peak from x2 to x10 hands you a weapon and upgrades the ones you carry. Eleven weapons, eight rooms across two wings — the undead streets and the machine facility — endless waves, and a boss every tenth wave built specifically to stop you hiding behind a barricade.
How was BLOCKHEAD made?
The prompt behind BLOCKHEAD
Remake Boxhead (Sean Cooper) as a modern game: menu with character and map select, wave-based enemies, boxes that give health and ammo, the x1/x2 score multiplier that unlocks weapons as it climbs, bosses, and a score screen on death — same mechanics, brought up to 2026 in UI and attention to detail.
Categories and tags
Questions about BLOCKHEAD
5
- Is BLOCKHEAD free to play?
- Yes. BLOCKHEAD 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 BLOCKHEAD?
- No. BLOCKHEAD runs entirely in the browser on desktop. There is nothing to install and no launcher to sign in to.
- Which AI model made BLOCKHEAD?
- BLOCKHEAD was written by Opus 5, a model from Anthropic. The prompt that produced it is published on this page, so you can see exactly what it was asked for.
- Can I play BLOCKHEAD on my phone?
- BLOCKHEAD has not been marked as working on phones, so it is best played on a desktop or laptop.
- Does BLOCKHEAD keep a high score?
- Yes. Any score BLOCKHEAD reports goes to the leaderboard under the game, and you do not need an account for it to count.
Version 2.0