Why Every Dev Should Try a Game Jam
Last week, I took part in my first ever game jam: the Roblox Developer Challenge 2026. It was 72 hours of intense creativity, problem-solving, and surprisingly little sleep. On this week's episode of Beyond The Blox, Anthony and I broke down the whole experience — from prep to submission — and I wanted to share the key takeaways here too.
What Is the Developer Challenge?
The Developer Challenge is an annual 72-hour game jam hosted by Roblox Developer Relations. Teams of one to five people build an experience from scratch based on a secret theme revealed at the start. In 2025, there were over a thousand submissions, and I can only imagine that number has gone up this year.
There are five judging categories — Most Engaging Experience, Best Technical Quality, Most Creative Interpretation of the Theme, Best Use of Interactive AI (new for 2026), and Most Innovative Gameplay — with each winner receiving a $1,500 gift card per team member.
Our Strategy: Plan, but Stay Flexible
My teammate and I went in as a duo: I handled programming and UI, while they focused on 3D modeling and textures. Before the theme dropped, we prepared five rough game ideas — core loops that could be adapted to fit whatever the theme turned out to be.
Our guiding principles were simple: leverage Roblox's strengths (multiplayer, physics, the default player controller), aim for something replayable with a strong core loop, and build something we could continue developing after the jam.
When the theme "First Contact" was revealed on Friday evening, we narrowed it down to our bomb battle concept. Two teams separated by a maze of walls, blasting through with bombs to reach each other's base. First Contact — literally. We leaned into it further with an astronauts vs. aliens aesthetic, and the game Space Bombs was born.
The 72-Hour Breakdown
We structured the weekend with clear priorities:
- Friday: De-risk the core mechanic. For me, that was using CSG cutting APIs to blow holes in walls — something I'd never done before.
- Saturday: Build the game loop. Map generation, team spawns, round system.
- Sunday: Integrate everything. Models, power-ups, and the bomb mechanic all coming together.
- Monday: Polish and nice-to-haves. UI animations, recharge indicators, bug fixes.
Did we stick to the plan perfectly? No. Saturday's tasks bled into Sunday, Sunday's into Monday. But because we'd front-loaded the riskiest work, we had something submittable by Monday morning and spent the final hours adding polish rather than panicking.
We also co-located — desks back-to-back, hardwired to the router. That free-flowing communication was a game-changer for motivation and coordination.
AI as a Development Tool
We used three AI tools during the jam. I used CodeRabbit as an automated code reviewer on my pull requests, which caught three or four bugs I wouldn't have found until much later. I also used Windsurf with Gemini for code completion and boilerplate, which sped up the TypeScript workflow significantly. My teammate used Gemini's image generation to create reference images for low-poly 3D models.
We decided against integrating runtime AI features like 4D Generation into the game itself. It had only just entered client beta, and we preferred aiming for four out of five judging categories rather than betting everything on one.
Three Takeaways for Any Developer
1. It's just fun. The game jam brought back that childhood sleepover energy — permission to stay up late, be creative, and build something with low stakes. Even if you don't win, you'll have a great time.
2. Motivation is contagious. Working alongside someone, seeing their progress, and wanting to match it kept us both incredibly focused. My phone lasted nearly three days without a charge because there was zero desire to doom-scroll.
3. Build the MVP first. This is the biggest professional lesson. The time constraint forced us to strip everything down to the core mechanic and validate that it was fun before adding anything else. No elaborate scenery, no over-engineering — just the game loop. If it's not fun at its core, no amount of polish will save it. I'm applying this approach to every new project going forward.
Try It Yourself
Whether you're a seasoned developer or just starting out, I'd genuinely encourage you to enter a game jam. The Developer Challenge happens annually, and it's a brilliant way to test your skills, spark new ideas, and just have a good time building something from scratch.
Winners for 2026 haven't been announced yet, but honestly — win or lose, it was worth every hour.
Sources: