ZEUS's own small 3D game: as a crab with one huge claw, walk a sandy island and collect seven crystal shards into the empty sockets on your shell. You never press an action button; the crab collects, knocks and hops as you pass. It is a quiet, silent, one-island game that ends on the words "The island is clear".
Shellbearer is a small third-person game about a crab on a beach. You walk a red crab around a small sandy island under a bright sky, and the goal, stated at the top right of the screen, is "Gather the seven crystal shards". Each shard you find flies up, spins once and drops into one of seven empty sockets on the white dome on the crab's back, where it stays lit for the rest of the game. The screen has no menu and no title card: the page loads, the crab is standing on the sand, and you walk.
It is the creator's own page, not a recreation. ZEUS (@zeuuss_01) posted it on 5 September 2026 with a 30-second video, saying GPT-6 Astra wrote it in one pass in 43 minutes from a single markdown specification, in Three.js, with every 3D model generated rather than hand-modelled and no code written by him. The box under this write-up quotes that post and links it. The game's own title, as shown in the browser tab and in its source, is Shellbearer.
The site catalogue that pointed us to it calls it "a crab game with action-driven mechanics". That undersells how it plays. There is no combat, no timer and no enemies. The only things you do are walk and hop; the "actions" are things the crab does on its own when you get near something.
How to play Shellbearer
- Walk with W A S D or the arrow keys, and hop with Space. That is the whole control scheme, and there is no on-screen help. Movement is relative to the camera, which rides behind the crab and turns to follow whatever direction you last walked, so you steer by pointing the crab where you want to go; you cannot rotate or zoom the camera yourself. The crab has a big claw and a small one that do not match, and it leans toward the heavy side when it stands still. If you stop, it idly taps the big claw on the sand twice, every few seconds.
- Two counters sit at the top left: gold coins collected, and shards collected out of seven. Coins are optional. Over two hundred coin objects are placed around the island (some of them waiting inside chests), and when the crab passes within a couple of body-widths a coin lifts off the sand and flies into it. A few seconds of walking picked up 21 in our first test. Nothing in the game uses them, and the counter never turns into a goal.
- The seven shards are the actual objective, and each sits somewhere different, according to the code and to what we saw. One is out in the open near where you start. One is behind a clump of palms and only shows when you walk past. One is at the far end of the wooden jetty. One is in the shallows half hidden by a boulder. One is inside the cave at the far end of the beach. One sits on top of a rock you have to hop onto. The last is locked inside a large treasure chest.
- That chest is the one place the game teaches by repetition. Six smaller chests stand around the beach and hold coins; walk up to any of them and the crab stops, knocks on the lid twice with its big claw, and the lid flips open. By the time you meet the seventh chest, the knock is already familiar. Walk up to it, wait for two knocks, and the shard rises out and is taken into the last socket.
- The crab also hops driftwood logs on its own if you walk into them at speed, and a pile of driftwood gives way when you push up to it. Walking into the sea shallows makes small splashes, but the crab cannot go out to open water; the beach edge and the sea line hold it in.
- When the seventh shard is seated the objective text fades out and is replaced by "The island is clear". Nothing else happens: no score screen, no restart, no credits. You can keep walking and collecting coins. There is also no way to lose. Nothing can hurt the crab and nothing times out.
Controls: W A S D or the arrow keys walk the crab, Space hops. The camera follows by itself and cannot be moved. Everything else (coins, the chest knock, the shards) happens when the crab gets close.
Click Fullscreen above the game for the largest play area. If the game does not load, use Open in new tab to play it directly from our copy.
Why it's worth your time
The interesting part is how little the game asks of the player. ZEUS's post says the trick in his specification was describing the crab's actions only through their effects, so that the text never says the crab collects coins but says coins lift off the ground and fly into it as it passes. That is exactly what the finished game does: there is no pick-up button, no attack button and no interact key. Collecting, knocking and seating a shard are all consequences of proximity. We can confirm the behaviour by playing it; the claim about how the specification was written is his, and the specification itself (which he says is in the replies to his post) is not part of the page.
The look is deliberately flat: bright single-colour surfaces with no textures. The game's asset code strips every texture and material off each generated 3D model and re-colours it from one palette, which explains why a beach made of separately generated models still looks consistent. The models sit in a folder named thrixel_assets in the site's files. The crab's own big claws were not usable as generated; a comment in the code says the claw is built in code because four generated attempts would not hold the proportions, and the generated claw is hidden and replaced.
Some rough edges are the author's, not ours. The game opens with the camera close enough that a palm frond covers much of the crab's body, exactly as it does on the original site; it clears as soon as you move. There is no sound at all, no pause and no way to restart other than reloading the page. The seventh shard being locked inside a chest is not signposted; you have to notice the big chest and walk up to it.
The mirror on this site is a byte-for-byte copy of the original page apart from one removal: the original page has an injected Netlify script that draws a "Powered by Netlify" badge in the bottom-right corner, and we left that script out of the copy. Everything else, including the three.js build the page ships with, runs from this site and makes no outside requests, and the game does not need the original server for anything.
Like every game in this catalogue, we found it through Tripo's GPT-6 Astra prompt collection; the credit for the game belongs to its creator, ZEUS.
How it was made and where it lives
Hosted on Netlify. The author publishes as zeuuss_01. Original: https://beach-crab-game.netlify.app/. The Play button above runs our own unmodified copy, so the game keeps working here if that page goes down — which on free hosting usually has nothing to do with the author. Nothing about the game itself is changed, and the original stays linked from every page.
The post that led us here
ZEUS@zeuuss_01GPT-6 ASTRA ONE-SHOTTED THIS GAME IN 43 MINUTES.
I spent longer writing the 41 things it was not allowed to build.
one markdown file, three.js, every model generated, not modelled. zero lines of code from me.
If you like Shellbearer, try these
PELICAN PEDAL is another bright low-poly coastal scene where coins and fish are collected as you pass, though it is a lane-based runner where Shellbearer is a free walk.
Mosswing is another quiet, no-fail game with no menus, if you want something similarly unhurried.
Frequently asked questions
- What is the game actually called?
- Shellbearer. The catalogue lists it as a crab game, and the address is beach-crab-game.netlify.app, but the page title and the code header both say Shellbearer.
- How do you win?
- Collect all seven crystal shards. The counter at the top left shows how many you have, and when you get the seventh the top-right text changes to "The island is clear". There is no separate ending screen.
- Can you lose or die?
- No. There are no enemies, no timer and no damage in the game, so you cannot fail; you only finish or stop playing.
- What are the coins for?
- Nothing that we could find. They count up at the top left as the crab passes them, but no shard, chest or ending depends on them.
- Does it work on a phone?
- It loads and looks right on a phone-sized screen, but it has no touch controls at all. We tried taps and drags in an emulated iPhone and the crab did not move. It needs a keyboard.
- Does it have sound?
- No. The game's code contains no audio at all.
- Who made it?
- ZEUS (@zeuuss_01) published it. In his own post he says GPT-6 Astra built it from his specification in 43 minutes; we could not check the timing or the specification, only the finished game.
- Does this copy need the original site?
- No. The game and all its models are hosted here and it makes no outside requests. Only the "Powered by Netlify" badge from the original is missing.
- Is Shellbearer free to play?
- Yes. Everything on Floating Arcade is free, with no account, ads or downloads.
- Can I embed this game on my own website?
- Yes — copy the snippet below. The embedded player links back here, which is how we ask to be credited.
Embed Shellbearer on your site
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