Space Defenders
by @jasonleowsg · built with an AI coding agent · plays free at jasonleow.com

Free, no install, runs in the browser. Hosted by its creator at jasonleow.com — the link opens their site, not a copy on ours.
What Space Defenders is
Space Defenders is a shooter game by @jasonleowsg. Space Invaders-style shooter generated from a single prompt. Built with Claude 3.7 Sonnet · HTML5 Canvas. It is a 1.2 MB download that loaded in 3.2s when we tested it and renders with WebGL.
Space Defenders: measured
We loaded Space Defenders in a real headless Chrome, played it, and recorded what it did. Blank cells are facts we could not measure, not zeros.
| Download | 1.2 MB | Total bytes fetched on first load. |
|---|---|---|
| Loads in | 3.2s | Time to the load event on a desktop connection. |
| Renderer | ANGLE (NVIDIA, NVIDIA GeForce RTX 4070 Laptop GPU (0x00002860) Direct3D11 vs_5_0 ps_5_0, D | What the game draws with. |
| Requests | 3 | Files fetched — a low count means a self-contained build. |
| On a phone | Overflows by 207px | Measured in a 390×844 viewport. |
Method and the full comparison: how we measured these games · what games like this cost to build.
Space Defenders FAQ
Is Space Defenders free to play?
Yes. Space Defenders is free and runs in your browser at jasonleow.com — no download, no install and no account. It was made by @jasonleowsg.
What kind of game is Space Defenders?
Space Defenders is a shooter game. Space Invaders-style shooter generated from a single prompt. Built with Claude 3.7 Sonnet · HTML5 Canvas.
Does Space Defenders work on mobile?
Not comfortably. In a 390×844 phone viewport the layout overflows by 207px, so parts of the game sit off-screen.
How big is Space Defenders?
1.2 MB on first load, across 3 requests, loading in about 3.2 seconds.
Who made Space Defenders?
@jasonleowsg, using an AI coding agent. It is one of 393 games built this way that we catalogue and measure.
Credit
Space Defenders was made by @jasonleowsg and is hosted on their own site at jasonleow.com. 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.





