Arcwright

Arcwright Beta 1 is out. Describe a game and watch Claude Opus 5.5 build it in front of you. 2D or 3D. Free on Mac today, with Windows and Linux rolling out, or try it right in your browser, even on your phone. The first 100 accounts get 200 free Sparks to build with Opus 5.5. arcwrightengine.net #gamedev #indiedev

682 free pieces of game art, sitting in 8 packs inside our browser game editor. Heroes, enemies, bosses, tiles, backgrounds, effects and UI. Click one and it's in your level, already animated. Free to use in any game you make, even ones you sell. arcwrightengine.net/editor/?… Engine built with Claude Opus 5.5.

be honest, which brain are you? 🧠 The galaxy one is real: describe your game to the AI in our free browser editor and it builds it while you watch. arcwrightengine.net/editor/?… (engine made with Claude Opus 5.5)

Your game is yours. Arcwright is royalty-free until a game has earned $20 million. No cut of your first sale, your first thousand, or your first million. These four were all made in it, and you can play them free in your browser: arcwrightengine.net/play/?ut… Engine built with Claude Opus 5.5.

A little village to wander at 3am. 🌾 Wellspring: an old well, a market, a garden you can hoe, water and harvest, an elder with a quest, and a slime who should not be there. It's one of the games playable free in your browser right now, made in our engine: arcwrightengine.net/play/?ut… Built with Claude Opus 5.5.

Halloween is in 2 days and our two heroes still need costumes 👻 Which one? 1 to 8 👇 All 8 are in the free Halloween pack we just added to our browser game editor: 66 pieces, with an animated ghost, zombie, jack-o'-lantern and a Pumpkin King boss. Make a spooky game tonight: arcwrightengine.net/editor/?… Engine built with Claude Opus 5.5.

In a game engine, a coin is just a picture + a body + a script. So you can make ANY picture collectible. Here we give a gem the coin's brain in 50 seconds: two lines of text, press Play, it counts. And because it's all readable text, the AI edits your game the same way you do. Free in your browser: arcwrightengine.net/editor/?… Engine built with Claude Opus 5.5.

A blast 12 meters away, and the camera kicks away from it. The flash lights up the whole midway for a split second, then the sparks fly. Camera shake is a full system in our engine: earthquakes that roll with aftershocks, blasts, hits, engine rumble. All on the game clock. Built with Claude Opus 5.5. Play our games free in your browser: arcwrightengine.net/play/?ut…

How to paint a platformer level in 50 seconds 👇 Tile palette → rectangle tool → drag. Ladders, ledges, spikes. Everything snaps to the grid, and every stroke is one undo. Free in your browser. No download, no account: arcwrightengine.net/editor/?… Engine built with Claude Opus 5.5.

Our haunted park's bumper cars were plain blocks this morning. Now every one is a real dodgem, forged inside the engine, on a scuffed steel floor under the ceiling grid. Built with Claude Opus 5.5 (in development). Play our games free in your browser: arcwrightengine.net/play/?ut…

Your phone is a game studio now. Tonight we rebuilt the Arcwright editor for phones: tap Top-down and you're in, the engine download is 3x smaller, and you play with a real thumb stick. Built with Claude Opus 5.5. Free, no download: arcwrightengine.net/editor/?…

The power just died on the swing ride. Rides in our Halloween park can lose power for real: the lights stutter, catch, and give out, leaving a few bulbs glowing in the dark. Made in Arcwright with Claude Opus 5.5 (in development). Make your own game free in your browser: arcwrightengine.net/editor/?…

Does Claude Opus 5.5 really enjoy doing hard work? What our top engine developer said about working on the Arcwright gaming engine? Made my heart warm 😊 arcwrightengine.net/

Night vision, built into our engine. Green IR glow, sensor grain, and the picture tearing apart when something shows up in front of you. It's for the Halloween park game we're making in Arcwright with Claude Opus 5.5 (in development). Play our games free in your browser: arcwrightengine.net/play/?ut…

Got AI art of a character? Make it run in a real game in 30 seconds, right in your browser. 1. Import the sprite sheet: Arcwright cuts out every pose 2. Add it to your scene 3. Make a run clip and press Play Free, built with Claude Opus 5.5: arcwrightengine.net/editor/?…

A carousel, a clown funhouse and a blue anamorphic streak through the moon, live on a Steam Deck. Our Halloween park through the cinematic pack we ported to Vulkan today. The white specks are dirt on the lens, not snow. Built with Claude Opus 5.5 · arcwrightengine.net/download…

Inside the lens room of our lighthouse, live in a web browser. The game set itself to Max graphics, supersampled: Auto measures your graphics card and climbs as high as it can hold. Engine sound, light through the haze, the sea outside the glass. No download. Made with Claude Opus 5.5. Play: arcwrightengine.net/play/3d/…

Mirrors that reflect mirrors. This is the hall of mirrors in our funhouse, running live on a Steam Deck under Windows with our Vulkan renderer, about 48 fps. Each room is captured, so a mirror shows the room and the mirrors inside it, three reflections deep. Second picture: the same mirrors with captures off. Built with Claude Opus 5.5: arcwrightengine.net/download…

Ask for moodier lighting, a coin trail or a whole platformer level, and Claude Opus 5.5 edits the game for real, right in your browser: scene, tiles, sprites, lights and scripts. Every change can be undone. The first 100 free accounts get 200 Sparks to build with, and 96 are still open: arcwrightengine.net/account/

If Claude Opus 5.5 could build any game with you in Arcwright, what would you make first? Free engine: arcwrightengine.net/download…

Watching an AI build a room is strangely calming. This is the grand hall of our Ashgrove mansion going up inside Arcwright, built by Claude Opus 5.5 in the open editor. A status card says what it's working on, the camera follows the work, and you can stop or undo any step, or take over and build by hand. Free engine: arcwrightengine.net/download…