Summer Engine

🕹️ The AI Game Engine
👾 Making games as fun to build as they are to play
☀️ Join our small community on discord

[Summer Engine @SummerEngineCom]

Introducing Summer Cloud for game devs, in research preview

When making games you quickly end up with huge repos due to big assets.

Sharing assets with teams is rough and slow, and git is bad at this even with LFS.

You can now save all your assets in Summer Cloud, and ship just your code to Github, and let your AI agents keep everything in sync with our MCP and skills

[Summer Engine @SummerEngineCom]

Summer Engine Game Jam is back!

1 week to make your dream game + prizes.

Starting Monday June 15

[Summer Engine @SummerEngineCom]

Summer Board is now live in Summer Engine

- A miro like experience
- Ideate your game, and visualize your game style
- Summer AI can see your board, and use it as a reference to build your game

Excited!

[Summer Engine @SummerEngineCom]

New Summer Engine version is now live and includes @ElevenLabs new Music V2 model ready to create music, SFX, and dialogue easily in your game!

[Summer Engine @SummerEngineCom]

Create an asset sheet and AI automatically name and slice it all. Ready to be imported directly into your game.

Coming soon

[Summer Engine @SummerEngineCom]

Then connect Codex to the free Summer Engine MCP and launch your game on Steam for pc and mac = profit?

[Givros @givros]

The new 2026 AI workflow is going to destroy the old way of prototyping games.

Workflow:

GPT Image 2.0: cinematic + asset sheet
Codex: “make this image playable”

Prompt below 👇

[Summer Engine @SummerEngineCom]

and then eats them

[Noah @NoahKingJr]

Anthropic with Software engineers:

[Summer Engine @SummerEngineCom]

Big update dropping today

[Mathias Heide @MathiasHeide]

Hope you had an amazing weekend!

Monday news ☀️

We are starting to see people coming online in Summer Engine from all over the world now! All just sharing the love of games. It's awesome!

This also means, that I now need to work on multi-region architecture, to make sure that no matter where you are in the world, that you get a nice experience.

For this week, I'll be locked in on not making new features, but on making improvements to everything that is already there, and to make everything more stable

Thank you so much for making games with Summer!

Much Summer love,
Mathias

#indiedev #gamedev @SummerEngineCom

[Summer Engine @SummerEngineCom]

Here's a link if you want to try it out
https://t.co/L3F9R7aTUJ

[Summer Engine @SummerEngineCom]

🚨Seedance 2.0 video is now live on Summer Engine Studio

- Upload a screenshot of your game
- Create epic cinematics
- Have fun

link below

[@levelsio @levelsio]

🕹️ THE VIBE JAM IS BACK!

I present you...

🌟 2026 @cursor_ai Vibe Coding Game Jam #vibejam

Sponsored by @boltdotnew + @cursor_ai

Start: Today!

Deadline: 1 May 2026 at 13:37 UTC, so you have a whole month to make your game!

REAL CASH PRIZES:

🏆 Gold: $20,000

🥈 Silver: $10,000

🥉 Bronze: $5,000

RULES:
- anyone can enter with their game
- at least 90% of code has to be written by AI
- it should be started today or after today, don't submit old games
- game has to be accessible on web without any login or signup and free-to-play (preferrably its own domain or subdomain)
- multiplayer games preferred but not required!
- can use any engine but usually @ThreeJS is recommended
- NO loading screens and heavy downloads (!!!) has to be almost instantly in the game (except maybe ask username if you want)
- add the HTML code on the Google form in the reply below to show you're an entrant
- one entry per person (focus on making one really good game!)

WHAT TO USE:
- anythign but we suggest @cursor_ai's Composer 3 and @boltdotnew, they are both fast, affordable and great at ThreeJS and making games

THE JURY:
Me, @s13k_, and I will ask some real game dev and AI people to jury again too

Sponsors and jury suggestions still very welcome, just DM me!

It will be interesting to see the difference in quality with last year, and the Vibe Jam can be kind of like a fun benchmark for AI coding seeing it close in on real commercial games I think

To enter, complete the form in the reply below this tweet!

[Summer Engine @SummerEngineCom]

@TimLiversage Wuhuu!

[Summer Engine @SummerEngineCom]

We just launched the full new version of Summer Engine.

What's new:
- Complete UI redesign
- Rebuilt AI context engine.
- Create your GameSoul.md
- Plan, Debug, Chat modes for your AI agent
- New template browser on the site

Free usage is bumped up this weekend for new users.

Go make a game https://t.co/Iucu1oKfs2

[Mathias Heide @MathiasHeide]

working on a 2D-platformer open source template for Summer Engine, that let's you quickly get started with your game idea!

[Summer Engine @SummerEngineCom]

Make games with our new MCP & CLI

- Connect Summer Engine MCP to your favorite IDE
- Create full end to end games
- Have fun

You can read more here
https://t.co/zPcNZa49MX

[Summer Engine @SummerEngineCom]

Summer Game Jam is now starting! You can still join!

From Thursday to Sunday at 14CET

All engines and any tool allowed!

GOOD LUCK!

See you in Discord

#gamejam #gamedev

[Summer Engine @SummerEngineCom]

Game Jam time this weekend! come and join!

[Mathias Heide @MathiasHeide]

Join this weekends Game Jam and get $20 free credits to try Summer Engine!

The theme for the jam has just been revealed!

Head over to the site to sign up and see the reveal 👀🌕

#gamedev #gamejam #indiedev

[Summer Engine @SummerEngineCom]

Summer Engine New Update! ☀️

Smarter project indexing is here and we cut token usage by 90%

- Assets discoverable by name - say "add the dragon model" and the AI finds it much faster in large repos (we know those game repos can be freaking massive!)

- Fallback content when desktop is offline so no more empty results!

Big wins today!

Oh and we let the video keep going in black screen in case you wanted to finish listening to the banger

#gamedev #ai

[Mathias Heide @MathiasHeide]

BIG update coming soon to Summer Engine

I’m implementing full self debugging with in-scene snapshots and a “start the game and take a snapshot” flow.

This lets Summer actually see what’s happening in your game, visualize the state, and help you debug properly. It’s a huge unlock.

The snapshot is taken through the engine only. It cannot capture anything else on your PC. It does not screenshot your chat with Summer. The images are stored with zero data retention.

I’m very excited about this. It’s a big step forward. I’m deep in it, and this is why I didn’t launch the version yesterday. I want this in the Windows release. It’ll be worth it.

#gamedev