What was HALDANE-4 made with?

HALDANE-4 was made with the Custom engine engine, according to its listing. It was entered in Cursor Vibe Jam 2026, which requires at least 90% AI-written code. The AI tool or model is not stated in the source.

How do you control HALDANE-4?

The game's own page mentions arrow keys, WASD, Space, the mouse, mouse clicks and touch. We detected this from the live page text; the creator hasn't confirmed a controls list.

Does HALDANE-4 work on phones?

Yes. It has touch controls, so you can play it on your phone.

Is HALDANE-4 multiplayer?

No, its listing says it is single-player.

Where can I play HALDANE-4?

Free in your web browser on haldane4.denisbondare.com, the creator's own site. Vibe1Up links to it and doesn't host the game.

Is the prompt for HALDANE-4 official?

No. The prompt on this page is a Starter recipe: our own reconstruction from the game's public listing and live page, not the creator's official prompt. If you made this game, you can share your real prompt at vibe1up.com/prompts/ and we'll show it with the Creator's prompt badge.

Screenshot: @denisbondare (via the creator's Vibe Jam submission)

🏆 Vibe Jam 2026 #5

HALDANE-4

by @denisbondare · Custom engine · submitted 2026-04-19

📱 Phone-friendly

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“A short horror ASCII story about a solo descent beneath the Antarctic ice shelf.” (excerpt from the jam entry)

Adventure Horror

▶ Play now Make your own (Starter recipe)Choose a twist 🔀 Remix this 📘 Make one like this

🧬 Game DNA

Genes: genre · engine · multiplayer · mobile. Colors are shared across the site, so matching colors mean matching traits.

Games with similar DNA

Starter recipe

Starter recipe: a learning template written by Vibe1Up from the game's public description. It has not been reproduced in a fresh AI-builder session. It is not the creator's official prompt. Are you the creator? Share yours and we'll show it with the Creator's prompt badge.

A prompt you can paste into an AI coding tool to build a game like this one. Based on: the listing and the live game page (checked 2026-10-14).

Open Bolt ↗

Affiliate link: Vibe1Up may earn if you subscribe. Free option: ask a coding tool for one HTML file and run it locally. Builder usage limits still apply.

Read the full Starter recipe

Build a short horror browser game inspired by "HALDANE-4": a solo descent beneath the Antarctic ice shelf, told through an ASCII-art operator terminal.
Tech: a custom renderer that draws the world as ASCII characters on a canvas or in a monospaced grid. Single page; best on desktop with headphones, with drag controls on mobile.
Controls: WASD to thrust, mouse to rotate, Space for the light, Shift to cut the engine (to stay quiet). Click to 'initialize the terminal' to start (and unlock audio).
Gameplay: pilot a small sub through dark caverns, with the light revealing only a small cone of the world. Story beats come as terminal log messages as you go deeper. Something is down there; turning off light and engine to hide is part of the tension.
Audio does the heavy lifting: low hum, sonar pings, distant sounds.
Keep it short (10-15 minutes) with a clear ending.
Steps: 1) ASCII renderer + movement, 2) light cone and level layout, 3) terminal story log, 4) the threat and hiding, 5) sound design, 6) your own twist.
Make it your own: don't copy the original's name, art, text or code.

Choose a twist

Build, publish and optional polish

Next: build your first version

Copy the Starter recipe above, open a builder, and paste it into a new project. Get the core game working before adding extras.

Build with Bolt ↗

Affiliate link: we may earn a commission if you sign up or pay through this link, at no extra cost to you. A recommendation is not proof that this recipe has been reproduced in that tool.

Publish it, then polish later

host it free on Netlify. Once the core game works, optionally add voice or sound with ElevenLabs or 3D assets with Meshy. Netlify, ElevenLabs and Meshy are affiliate links; we may earn a commission at no extra cost to you. None of these extras is required to build the core game.

AI tool / model: not stated in the source. The jam requires at least 90% AI-written code.

At a glance

What was HALDANE-4 made with?: HALDANE-4 was made with the Custom engine engine, according to its listing. It was entered in Cursor Vibe Jam 2026, which requires at least 90% AI-written code. The AI tool or model is not stated in the source.
How do you control HALDANE-4?: The game's own page mentions arrow keys, WASD, Space, the mouse, mouse clicks and touch. We detected this from the live page text; the creator hasn't confirmed a controls list.
Does HALDANE-4 work on phones?: Yes. It has touch controls, so you can play it on your phone.
Is HALDANE-4 multiplayer?: No, its listing says it is single-player.
Where can I play HALDANE-4?: Free in your web browser on haldane4.denisbondare.com, the creator's own site. Vibe1Up links to it and doesn't host the game.
Is the prompt for HALDANE-4 official?: No. The prompt on this page is a Starter recipe: our own reconstruction from the game's public listing and live page, not the creator's official prompt. If you made this game, you can share your real prompt at vibe1up.com/prompts/ and we'll show it with the Creator's prompt badge.

Source: Cursor Vibe Jam 2026 entry · indexed 2026-10-13 · More AI-made games · More Custom engine games

Created by @denisbondare · Original game: haldane4.denisbondare.com · All rights in the game belong to its creator.

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