DEV Community: gtxpoffic-developer

Crack the Code Before the Sun Sets — My June Solstice Game Jam Entry

gtxpoffic-developer — Sat, 06 Jun 2026 15:21:21 +0000

This is a submission for the June Solstice Game Jam

What I Built

Solstice Cipher: Enigma of the Longest Day is a browser-based puzzle game built around the Caesar cipher — the same substitution cipher technique used in ancient cryptography. On the theme of the June Solstice, I tied the longest day of the year to an Enigma Machine-inspired challenge: decode encrypted messages before time runs out, with the difficulty scaling as the sun climbs higher.

The game features a real-time animated sky that shifts through dawn, noon, and dusk to reflect the solstice theme. Players are given a cipher shift key and must decode encrypted phrases by working through the Caesar cipher manually or by reasoning out the pattern — no brute-force tools allowed in-game.

This connects to the June Solstice theme because the game is literally set on the longest day: the puzzles grow harder as the day progresses, and the sky animation mirrors real solstice light from sunrise to sunset.

Video Demo

Play it here:

gtxpoffic-developer.github.io

Code

GTXPOFFIC-developer / Solstice-Chiper-Enigma-of-the-Longest-Day

This is a Enigma based June Solstice game feel free to include your own code or tinker this project just mention the orignal developers name pls

Solstice Cipher — Enigma of the Longest Day

A browser-based Enigma machine puzzle game set on the June solstice. Decode (or encode) encrypted transmissions before the daylight runs out.

Built By

Sudipto — Original developer

Feel free to fork, tinker, and include this in your own projects. Just mention the original developer's name.

How to Play

Objective

Configure the Enigma machine correctly to decode each level's ciphertext (or encode the plaintext) before the sun sets. Each wrong guess costs 45 minutes of daylight; correct guesses pause the timer for 30 seconds.

Controls

Control	What it does
Rotor dropdowns	Select which 3 rotors (I–V) are used
▲ / ▼ buttons	Adjust each rotor's starting position
Plugboard	Drag from one letter to another to connect them with a coloured wire (swaps those letters inside the machine)
Keyboard	Type the highlighted letter — click on-screen or use your physical keyboard
Lampboard	Lights up

…

View on GitHub

How I Built It

I built Solstice Cipher entirely in the browser using vanilla HTML, CSS, and JavaScript — no game engine needed.

Key technical highlights:

Caesar cipher engine — a pure JS implementation that encodes and decodes strings using a variable shift key, supporting both encoding and player input validation
Real-time sky animation — a CSS + JS canvas animation that simulates the solstice sky, cycling through morning, noon, and evening gradients in sync with puzzle progression
Enigma-style onboarding — I embedded a Jared Owen Animations explainer video on the Enigma Machine so players unfamiliar with historical cipher machines can get up to speed quickly before diving in

The biggest challenge was balancing the puzzle difficulty curve — making early ciphers approachable while keeping late-game decoding genuinely challenging without feeling unfair.

Prize Category

Best Ode to Alan Turing — Solstice Cipher is directly inspired by Alan Turing's work breaking the Enigma cipher during WWII. The game pays homage to that history by putting players in the seat of a codebreaker on the longest day, using the same Caesar substitution principles that Turing's work built upon. The Enigma Machine explainer in the onboarding is a deliberate nod to that legacy.

I made a Enigma Based Web Game

gtxpoffic-developer — Sat, 06 Jun 2026 04:41:49 +0000

This is a submission for the June Solstice Game Jam

What I Built

Video Demo

Code

GTXPOFFIC-developer / Solstice-Chiper-Enigma-of-the-Longest-Day

This is a Enigma based June Solstice game feel free to include your own code or tinker this project just mention the orignal developers name pls

Solstice Cipher — Enigma of the Longest Day

A browser-based Enigma machine puzzle game set on the June solstice. Decode (or encode) encrypted transmissions before the daylight runs out.

Built By

Sudipto — Original developer

Feel free to fork, tinker, and include this in your own projects. Just mention the original developer's name.

How to Play

Objective

Controls

Control	What it does
Rotor dropdowns	Select which 3 rotors (I–V) are used
▲ / ▼ buttons	Adjust each rotor's starting position
Plugboard	Drag from one letter to another to connect them with a coloured wire (swaps those letters inside the machine)
Keyboard	Type the highlighted letter — click on-screen or use your physical keyboard
Lampboard	Lights up

…

View on GitHub

How I Built It

I built Solstice Cipher entirely in the browser using vanilla HTML, CSS, and JavaScript — no game engine needed.

Key technical highlights:

Caesar cipher engine — a pure JS implementation that encodes and decodes strings using a variable shift key, supporting both encoding and player input validation
Real-time sky animation — a CSS + JS canvas animation that simulates the solstice sky, cycling through morning, noon, and evening gradients in sync with puzzle progression
Enigma-style onboarding — I embedded a Jared Owen Animations explainer video on the Enigma Machine so players unfamiliar with historical cipher machines can get up to speed quickly before diving in

The biggest challenge was balancing the puzzle difficulty curve — making early ciphers approachable while keeping late-game decoding genuinely challenging without feeling unfair.

Prize Category

I created a n8n marketplace which earns money for all

gtxpoffic-developer — Fri, 29 May 2026 15:32:56 +0000

This is a submission for the GitHub Finish-Up-A-Thon Challenge

What I Built

I have built a n8n marketplace for users who want workflows or have workflows to sell them and earn a side income its basically very simple complete ur KYC bank details and more, and ur good to go

Demo

Bolivita — Buy & Sell n8n Workflows | Automation Marketplace

The #1 marketplace for n8n automation workflows. Buy ready-made workflows or sell yours to thousands of automation enthusiasts worldwide.

    <div class="color-secondary fs-s flex items-center">
        <img
          alt="favicon"
          class="c-embed__favicon m-0 mr-2 radius-0"
          src="https://bolivita.com/favicon.png"
          loading="lazy" />
      bolivita.com
    </div>
  </div>
</div>

The Comeback Story

the project was just a Idea in 2025 but it came to reality in 2026

My Experience with GitHub Copilot

Github copilot has done the most it's to most powerful coding agent I have ever used

It was fully done alone there is no team me and my github copilot

Hey Guys! I am sorry I don't have a PC to run gemma 4 but I proudly use anitgravity and google models

gtxpoffic-developer — Sun, 24 May 2026 14:22:26 +0000

I dont have a powerful enough PC to run gemma 4 but I do use other google models and antigravity IDE and 2.0 for my day to day work I have made these apps https://aischoollab.com and https://bolivita.com

🚀 We just launched Bolivita.com – An independent marketplace for n8n workflows!

gtxpoffic-developer — Sun, 24 May 2026 14:18:22 +0000

Hey developers! 👋

My team and I just launched a brand new platform called Bolivita. If you work with automations, you probably know how annoying it is to waste hours setting up the same webhooks, formatting complex JSON payloads, and fixing broken API connections over and over again.

We built Bolivita.com to solve this exact problem. It is a dedicated marketplace where you can find production-ready n8n workflows, download the JSON file, and deploy it to your setup in under 2 minutes.

💡 What You Can Do On Bolivita:
🟢 Save Massive Time: Browse verified, advanced automations (like CRM syncs, lead routers, or automated alerting systems) and buy them directly to skip the grunt work.

🔵 Earn Side Income: If you are an automation engineer or developer who has built cool n8n workflows for clients, don't let them sit in a private repo. List them on Bolivita for free and keep a 65% seller commission on every single download.

🤝 We Are Hiring! (Join Our Open-Source Community)
We are looking for passionate open-source developers to join our community and code for fun!

The Reality Check: Please note that no money will be provided initially until the platform breaks even and starts earning consistent profits.

Who this is for: If you love building cool automation tools, want to sharpen your skills, and want to be a core part of an early-stage project from day one, we want you!

🌐 Check out the live platform: https://www.bolivita.com

👇 Let us know what you think in the comments: What is the most annoying automation pipeline you had to build completely from scratch this year?