Products / Case study
OFF PLAY
Games
Every game night, one link away.
A free website of 341 browser games for friends, couples, parties, classrooms and teams. Create a room, share a link or a six-character code, and everyone's in. No downloads, and it works on any phone.
- Platforms
- Web
- Status
- Live · Free to play
- Built by
- Devian Labs, in-house
- Stack
- Next.js 16, React 19, MongoDB Atlas, Server-Sent Events
01The problem
“One link. Everyone in.”
Game night usually starts with friction: everyone installs the same app, makes an account and hunts for the right lobby. For a quick break with remote teammates, or a party where only one person has the game, that's enough to give up.
We wanted game night to start with a link. Open it on any phone or laptop and you're playing, whether that's a ten-minute round of Ludo or a daily puzzle on your own.
02What we built
The product.
Online rooms
Create a room and share a link or six-character code. Friends join the lobby, the host starts, and bots can fill empty seats in most games.
Pass-and-play
Party, couples and drawing games that run on one device passed around the room, from Truth or Dare to Drawing Telephone.
Daily and solo puzzles
Daily Word, Connections, Sudoku, Nonogram, Cipher and more. Everyone gets the same puzzle, refreshed at midnight, with streaks and leaderboards.
A full chess suite
Play friends or the computer from 250 to 3200 Elo, then review any game with accuracy scores, move classifications and best-move arrows.
Tournaments and teams
Knockout tournaments with brackets that advance on their own, teams, per-game leaderboards and saved match history.
341 games, 25 categories
From Party and Group (70) and Daily Challenges (93) to Logic and Brain (68), Couples and Dating, Word Games and Arcade.
03Under the hood
The engineering we own.
- 01
Realtime without a realtime server
Every move is a POST. The server runs the game, writes the new state to MongoDB with a version check, and a change stream pushes each player's view over Server-Sent Events. There's no separate WebSocket server to run.
- 02
Server-authoritative game engines
Each multiplayer game, from Ludo and Chess to Scribble and Battleship, is a pure state machine behind one GameEngine interface, so clients can't cheat and new games drop in the same way.
- 03
Hidden information stays hidden
Cards in your hand and the word being drawn in Scribble are filtered per viewer on the server and never reach another player's browser.
- 04
Timers without a cron job
Turn clocks and round timers are deadlines stored in the game state. When one passes, a client sends a tick and the server settles it.
- 05
Stockfish in the browser
Stockfish runs as WebAssembly in a worker, with a strength model from 250 to 3200 Elo, hints, takebacks and an eval bar. The same engine powers game review for bot games, live games and pasted PGNs.
- 06
A catalogue that builds its own pages
One catalogue holds every game's metadata and copy. Each game gets its own page, how-to, FAQ, structured data, share image and sitemap entry automatically, which is how 341 games stay maintainable.
04Key decisions
A link, not an install
Solo games and pass-and-play need no account. Multiplayer rooms ask for a free Google sign-in so match history, teams and leaderboards work.
Ads never interrupt a match
Free, non-intrusive ads keep the site free, and they never appear inside live multiplayer games.
Bots keep a room playable
A game shouldn't die because one friend is late. Bots fill empty seats in most games.
One daily puzzle for everyone
The same puzzle for every player, so friends and teams can compare results.
05Where it is today
Live · Free to play
OFF PLAY is live and free at offplay.cc with 341 games, and the catalogue keeps growing, with hundreds more on the roadmap.
For your project
Need something like OFF PLAY?
The team and the engineering behind OFF PLAY are available for client projects and long-term partnerships.
Web applications
Products, dashboards, admin consoles and storefronts in React and Next.js, fast and search-friendly.
Backends and APIs
APIs, auth, databases, sync engines, security rules and edge workers, designed to be secure and cheap to run.
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