FPS

Operation IronHold

by prasenx · built with an AI coding agent · plays free at starknightt.github.io

Operation IronHold — gameplay screenshot showing fps action
Operation IronHold running in a browser — frame captured by our harness on 8 August 2026.
▶ Play Operation IronHold

Free, no install, runs in the browser. Hosted by its creator at starknightt.github.io — the link opens their site, not a copy on ours.

What Operation IronHold is

Operation IronHold is a fps game by prasenx. One HTML file, no assets: four weapons, ten enemies that flank and call out positions, and a clock. It is a 217 KB download that loaded in 1.6s when we tested it and renders with WebGL.

Operation IronHold: measured

We loaded Operation IronHold in a real headless Chrome, played it, and recorded what it did. Blank cells are facts we could not measure, not zeros.

Download217 KBTotal bytes fetched on first load.
Loads in1.6sTime to the load event on a desktop connection.
Frame pacing117 ms (~9 fps)Median frame time while playing; 95th percentile 150 ms.
RendererWebGL 2.0 (OpenGL ES 3.0 Chromium)What the game draws with.
Requests3Files fetched — a low count means a self-contained build.
On a phoneFits a 390px screenMeasured in a 390×844 viewport.
Source codeOpen source — 72★ on GitHubgithub.com/starknightt/operation-ironhold — you can read or fork it.

Method and the full 47-game comparison: how we measured these games.

Controls

W A S DMOUSE LOOKLMBRMBSHIFTSPACECTRLESC

Read from the game’s own page. Check in-game for the full scheme.

Operation IronHold FAQ

Is Operation IronHold free to play?

Yes. Operation IronHold is free and runs in your browser at starknightt.github.io — no download, no install and no account. It was made by prasenx.

What kind of game is Operation IronHold?

Operation IronHold is a fps game. One HTML file, no assets: four weapons, ten enemies that flank and call out positions, and a clock.

Does Operation IronHold work on mobile?

It fits a phone screen — we measured no horizontal overflow in a 390×844 viewport. We did not detect touch controls, so a keyboard and mouse may still be needed.

How big is Operation IronHold?

217 KB on first load, across 3 requests, loading in about 1.6 seconds.

Is Operation IronHold open source?

Yes — the source is on GitHub at github.com/starknightt/operation-ironhold, where it has 72 stars. You can read how it was built, or fork it.

Who made Operation IronHold?

prasenx, using an AI coding agent. It is one of 53 games built this way that we catalogue and measure.

Credit

Operation IronHold was made by prasenx and is hosted on their own site at starknightt.github.io. EveryGameMade does not host or claim this game — this page is a catalogue entry, the screenshot is a frame we captured of it running, and the specs are our own measurements. Creators: get in touch to correct or remove an entry.