Claude Fable 5.2
A sci-fi space shooter with 12 sectors and 3 boss fights, all in one HTML file.
Sternenjäger ("star hunter") is a vertical sci-fi shoot-'em-up that flies you outward across the solar system, from lunar orbit to the Oort Cloud, to destroy an alien mothership. There are 12 sectors and 3 boss fights. Your ship fires on its own, so the game is all about flying: weaving through waves, grabbing power-ups and saving your EMP for the moment it matters.
Lunar Orbit → Mars debris field → Asteroid Belt → Jupiter Station (boss) → Europa ice fields → Saturn's rings → Titan nebula → Uranus Gate (boss) → Neptune depths → Kuiper swarm → Oort Cloud → the Mothership (final boss). Every sector you clear unlocks the next, and the game remembers how far you got and your best score.
The whole game is one 40 KB HTML file, with no build and no server. It plays in portrait on a phone (drag your finger to fly), and on a PC with the keyboard or mouse or with a gamepad. Graphics are drawn on a canvas and the sound is synthesized. The game's text is in German.
Made by oldzitterhand.
| Drop | Effect |
|---|---|
| W (WAFFE) | Weapon level +1, up to 5 (more and wider shots). At level 5 it's worth 500 points instead. |
| H (HÜLLE) | Repairs 35 hull |
| B (EMP) | One more EMP, up to 3 |
| Gold | Bonus points (500 × your combo multiplier) |
Heavy ships always drop something, and other enemies drop power-ups regularly. Dying keeps the sector, but you restart it.
| Device | Fly | EMP | Other |
|---|---|---|---|
| Phone / tablet | Drag your finger | EMP button | Pause / sound buttons |
| PC | Arrow keys, WASD or mouse | Space or right-click | P pause, M sound |
| Gamepad | Stick | A |
Press Play Game above and Sternenjäger loads from the author's own site (oldzitterhand.github.io) inside a sandboxed frame. There is nothing to install.
Under the hood it uses Canvas.
On a phone, tap Play and the game opens fullscreen with its own touch controls.
Tip: click inside the game once to capture the mouse, and press ESC to release it. Fullscreen gives the best frame rate on large monitors.
12 sectors from lunar orbit to the Oort Cloud, with bosses at Jupiter Station, Uranus Gate and the Mothership. Clearing a sector unlocks the next.
You don't need to: the ship fires automatically. Collect W power-ups to raise your weapon level, up to 5.
It clears every enemy bullet, shields you briefly and damages every enemy on screen. You start with 2 and can carry up to 3.
Yes, in portrait: drag your finger to fly and tap the EMP button. It also supports keyboard, mouse and gamepad.
Yes. Sternenjäger runs in your browser for free, with no download, account or install. It loads from the author's own site (oldzitterhand.github.io).
Yes. It has its own touch controls. It is designed for a phone held upright.
Sternenjäger was made by oldzitterhand, using Claude Fable 5.2.
The author hasn't published the prompt. Many of these games came out of a long back-and-forth with the model rather than a single prompt.
The source is public at https://github.com/oldzitterhand/sternenjaeger.
Seven-a-side 3D football with referees, offside, cards, penalties and tactics, in one HTML file.