s&box is now open source — we're pleased to share our .NET 10 game engine source under the MIT license. Our goal with the play fund, royalty free game exporting and open source are all about giving back to the community so everyone wins. 👉github.com/Facepunch/sbox-pu…

Here are your final five games from Game Jam III! Boot up, play, and vote to see who makes it to the next round. ➡️ sbox.game/jam/three ⬅️

Nominations for Game Jam III are open! Boot up, play games, and vote for your favourites. And on the 28th September, the 5 games with the most nominations will go into the finals... sbox.game/jam/three 🗳️

Jump in and enjoy all the new titles from the Game Jam! Enjoy 20% off s&box from now until October 5th! store.steampowered.com/app/5… 👈

We're still game jammin' (nominations start this Friday!), the party system is bigger and better, and demos / cameras / video exports have gotten even easier. Read more on the newest update: sbox.game/news/update-26-09-… 👈

A new drawing API, razor-sharp GPU text, improved host migration, game hover cards, and Block Party. Plus mesh editing tools, performance gains, Mac and Linux improvements and a price drop. Read more on the latest update 👇 sbox.game/news/update-26-09-…

2D physics are in powered by Box2D. No new API or components, everything works with a single toggle. More in this week’s update 👇 sbox.game/news/update-26-09-…

Game Jam III is now live with a £50,000 prize pool! Theme revealed. Submissions open. New knockout nomination format. Read the rules and submit your game 👇 sbox.game/jam/three

Linux support is here for both client & editor. And a new main menu with personalised game discovery makes it easier to find good games and punishes slop. Garry talks about the player numbers, a £50,000 game jam coming soon and about the road ahead. sbox.game/news/update-26-09-…

Box3D is now public & open-source. 🎉 We've used it as our 3D physics engine for the past year, for a Sandbox game where players can build whatever they imagine, or developers can build any game - Box3D handles anything thrown at it. Open development like this makes games better for everyone. Congrats to @erin_catto on the release. box2d.org/posts/2026/06/anno…

Mini Motors: a new arcade racer to play and learn from 🏎️ Play maps from other installed games 🌍 We've locked down code archives 🔒 And our plans for the future 📅 sbox.game/news/update-26-06-…

🎧 on. New physically-based audio simulation in s&box 🔊 dynamic reverb, occlusion through walls, and sound that bends around corners. Loads more in our weekly update ▶️ sbox.game/news/update-26-06-…

Chaotic multiplayer brawlers, weird physics experiments, and everything in between. Check out what you've all cooked up in the first month of s&box! 🎉 Keep the creations coming. What’s your current work in progress? sbox.game/games

This week we added developer tutorials 📚 random item drops 🎁 a new welcome screen 👋 As well as a more consistent chat experience, new APIs, performance improvements and fixes. sbox.game/news/update-26-05-…