
JSFiddle
CodeSandbox
GitHub
replit
VS Code
Pastebin.com
JS Bin
A front end web development playground.

Age of Empires
OpenRCT2
Warzone 2100
shapez.io
FreeCiv
ANNO
VCMI
A 2D realtime strategy simulation with an emphasis on economy and city building. Expand your small settlement to a strong and wealthy colony, collect taxes and supply your inhabitants with valuable goods.

Which is more popular?
Based on our record, CodePen seems to be a lot more popular than UnknownHorizons. While we know about 513 links to CodePen, we've tracked only 6 mentions of UnknownHorizons.
Website, pricing, platforms and company facts side by side.
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| Website | codepen.io | unknown-horizons.org |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of UnknownHorizons yet.
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CodePen and UnknownHorizons. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Codepen is a social network for developers to show off their work, ask and answer questions, and exchange ideas. It's like a Reddit for coding and design, with a large community of talented web developers.
Codepen is a social development environment that allows developers to showcase their work and experiment with HTML, CSS, and JavaScript in a collaborative space. Codepen’s focus on visual and interactive development...
Codepen is a social development environment for front-end designers and developers. Build and deploy a website, show off your work, build test cases to learn.
We have no reviews of UnknownHorizons yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


> I vividly remember IE and many hacks to have css elements properly working in it… The common advice now is to only use CSS that is supported in the last two major versions of each major browser. You can check any css property's support... - Source: Hacker News / about 1 month ago
Thank you, heartfelt... For sharing an artwork, a miracle! Just in case, have you considered publishing the work at platforms as CodePen, where genius Artists/People express their art, too, as you?: // https://codepen.io/. - Source: Hacker News / 2 months ago
Embed on DEV: If you prefer CodePen embed, create a Pen with that HTML and add to the post as: {% codepen https://codepen.io//pen/ %}. - Source: dev.to / 11 months ago
In case you didn't know about it you might be interested in contributing to https://unknown-horizons.org/. Source: almost 4 years ago
Unknown Horizons is inspired by the Anno series. Not exactly the same, but also a city builder with resource management. Source: about 4 years ago
Not mentioned yet: Unknown Horizons https://unknown-horizons.org/. - Source: Hacker News / over 4 years ago
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Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
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Age of Empires is the critically acclaimed, award winning Real Time Strategy (RTS) game with a legacy spanning over 20 years and nearly a dozen titles in the franchise.
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Game engine recreation of RollerCoaster Tycoon 2 adding new features.
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Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
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Join "The Project" to restore humanity's synaptic-link technology after nuclear war...
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