逆インベーダー
A tiny browser shooter where you are the formation at the top firing down on a lone enemy; the developer, who says they cannot program, had Gemini CLI write it.
Links go to the official store or developer page. Last verified Nov 3, 2026.
Rights holder / original work: Space Invaders (Taito)
An unofficial reversed take on Space Invaders. No source mentions a licence from Taito. (ふりーむ! (Freem!))
VibeGameDB lists this game only to document that it was made with AI coding tools. We do not host it, we do not represent the rights holder, and listing it does not mean it is licensed.
Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- Play free — Freem!Freem!ReleasedFree
Plays in the browser on Freem!. No download.
Browser (no download) · ふりーむ! (Freem!)
About 逆インベーダー
A small free browser shooter that turns the Space Invaders setup upside down: instead of the lone cannon at the bottom, you control the formation at the top of the screen, sliding it left and right and firing down at a single enemy that wanders along the bottom and shoots back with normal, spread and bouncing shots. There are ten stages, and once per stage a power-up floats up that adds extra shots. Keyboard controls are Space to attack and the arrow keys to move, with on-screen buttons as well. The developer calls it a silly game made by AI that even its maker cannot clear. The developer, who says they cannot program, had Gemini CLI write it from their instructions, and made the images with ChatGPT. The title and idea refer to Space Invaders, but nothing on the page mentions any connection to its rights holder.
How it was built
Partially verifiedThe developer says on the Freem! page that, being unable to program, they gave Gemini CLI instructions and had it make the game, and lists Gemini CLI and ChatGPT as the tools used. The README says the game was programmed with Gemini CLI and that the images were made with ChatGPT.
- DeveloperREADME on Freem!: programmed with Gemini CLI; images made with ChatGPT. — ふりーむ! (Freem!)
Prompt-only development by a developer who says they cannot program: they instructed Gemini CLI, which wrote the game, and made the images with ChatGPT. The browser build on Freem! is a single HTML page with a canvas and one JavaScript file. No devlog was found.
- Engine / framework
- None (HTML5 canvas and JavaScript, observed in the browser build)
- Languages
- JavaScript
- Team size
- Not disclosed
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
Verification notes: The AI claim comes from the developer's game page and README on Freem! (“プログラミングのできない私がGemini CLIに指示を出して作ってもらいました”; “Gemini CLIでプログラミングをして作られています”). ChatGPT made the images and is kept in the usage text; it is not credited with code. The page does not describe the gameplay beyond the controls; the description of the formation, the enemy's shot types, the ten stages and the power-up comes from our look at the browser build on Freem! (page title 逆インベーダーゲーム), which we read but did not play through. A stage-select screen hidden behind the title screen is not described as a feature. We found no calls to AI services in the game file. The game is an unofficial take on Space Invaders; no licence or connection to its rights holder is mentioned. Whether one person made it is not stated outright, so team size is not recorded. Freem! shows no reviews. IP note: an unofficial take on Space Invaders; no licence from Taito is mentioned.
Development history
Published on Freem! as a free browser game (version 1.00).
Officialふりーむ! (Freem!)
Game performance
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Freem!
Free to play in the browser on Freem! (“Play on Browser”, version 1.00).
No public metrics recorded for this listing.
Sales & revenue (all platforms)
Browser game — there are no downloads to count.
Reviews & rankings
Not yet reviewed by our editors.
Prototype: your vote is kept only in this browser and is not counted anywhere.
Not currently ranked.
No player reviews yet.
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Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| 逆インベーダー (ふりーむ!) ふりーむ! (Freem!) · Japanese | Store page | Aug 19, 2025 | Nov 3, 2026 |
| 逆インベーダー ReadMe (ふりーむ!) ふりーむ! (Freem!) · Japanese | Store page | Aug 17, 2025 | Nov 3, 2026 |
| うさみん — Freem! creator page ふりーむ! (Freem!) · Japanese | Official site | Not confirmed | Nov 3, 2026 |
| Official game page (language check) うさみん | Official site | Not confirmed | Nov 3, 2026 |
- Release date
- Freem! shows the game as registered on 19 Aug 2025; the developer's README gives 17 Aug 2025 as its registration date. (ふりーむ! (Freem!), ふりーむ! (Freem!))
