Play Games
· Sliding tile puzzle
2048: Play Online in Browser (No Download, Free Lightweight HTML5)
Merge matching tiles until the board fills up. Four seconds to learn, months to get good at.
puzzletilesstrategy
Tagged
open source
Everything on GamerzGeek filed under “open source”.
Guides
· Browser emulation
How to Run DOS Games in Browser with JS-DOS v8: Complete WebAssembly Embed Guide
Embed classic MS-DOS games into your website using JS-DOS v8 and WebAssembly. Step-by-step bundle packaging, audio buffer tuning, and IndexedDB save state persistence.
dosjs-doswebassembly
Guides
· Open source
Browser games built with pure CSS or vanilla JavaScript, and why the distinction matters
A pure CSS game has no JavaScript at all — state lives in checkboxes and the whole thing is a constraint puzzle. A vanilla JS game has no framework. Both are worth playing for different reasons.
cssjavascriptopen source
Guides
· Game development
Raylib vs Godot 4 for 2D Retro Games: Performance, Binary Size, and WebAssembly Export
In-depth architectural comparison of Raylib and Godot 4 for 2D indie retro games. Real-world WebAssembly payload benchmarks, cold boot latency, and engine overhead.
game-devraylibgodot
Guides
· Open source
Web roguelikes with no pay-to-win, and how to tell a real one from a monetised one
Traditional roguelikes are the least monetised genre in games, and one of them has been playable in a browser tab for years. Here is what to play and the four checks that expose a free-to-play trap.
roguelikedcssshattered pixel dungeon
ReviewsRated 9.6 out of 10
· Web Browser / Linux
Shattered Pixel Dungeon Review: The Gold Standard of Open-Source Web Roguelikes
A comprehensive review of Shattered Pixel Dungeon. Deep dive into turn-based mechanical clarity, zero pay-to-win design, and how to play it in your web browser.
roguelikeopen-sourcebrowser-game
Guides
· Open source
Open-source clones of classic games on GitHub, and what each one still needs from you
OpenTTD, OpenRA, Mindustry and Cataclysm-DDA are four of the most-starred game projects on GitHub. Three are engine reimplementations that need something from you. Here is the licence and the catch for each.
open sourceopenttdopenra
Play Games
· Arcade puzzle
Hextris: Play Online in Browser (Fast Hexagonal Puzzle, No Download)
Spin the hexagon, catch the falling blocks, clear them in threes. Runs last about ninety seconds and feel like thirty.
arcadepuzzlereaction
Guides
· Game development
5 minimalist open-source game engines you can learn in a weekend
Godot, Defold, Phaser, KAPLAY and Raylib all promise a game by Sunday. They are not interchangeable. Here is what each one is genuinely fast at, and where each will waste your weekend.
game devgodotphaser
Guides
· Open source
PICO-8 vs TIC-80: which fantasy console should a beginner start with?
One of these is open source and free. The other is closed source and costs $14.99. Both are excellent, and the right pick depends on whether you want to publish or to own your toolchain.
pico-8tic-80fantasy console
Play Games
· Logic and deduction
Minesweeper Online: Classic Logic Puzzle in Browser (No Download, Free HTML5)
The deduction game you already know, with a board you can resize and five emoji sets to read it in.
logicdeductionpuzzle
Guides
· Browser emulation
The best open-source browser emulators on GitHub, and what each one is actually for
EmulatorJS, js-dos, v86, Ruffle and noclip.website are lumped together as browser emulators, but they do four different jobs. Here is what each is, what it costs you, and one that declares no licence at all.
emulationopen sourceemulatorjs
Play Games
· Arcade shooter
Retro Asteroids: Play Classic Vector Space Shooter in Browser (No Download)
Rotate, thrust, shoot. The vector arcade classic, rebuilt on canvas with the physics and inertia intact.
arcadeshootervector
Play Games
· Side-scrolling platformer
Tiny Platformer: Minimalist 2D Browser Jump Game (Playable Reference Engine)
A tiny, honest platformer that exists to show how platformers work. The level is short; the engine is the exhibit.
platformeropen sourcegame-dev