Impact.js
The facts below are what the maker publishes about Impact.js, checked and dated. Our editors have not written about it yet.
Plans and prices
From Impact.js's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Impact | Free | MIT License · source available on GitHub |
The facts
Each one read from Impact.js's own pages, with the date it was checked.
What it does
- 2D level editor
- Impact includes Weltmeister, a level editor for creating 2D game worlds and connecting entities into logic chains.checked 11 Oct 2026
- Console export
- Yeschecked 24 Sep 2026
- Core capabilities
- The documentation covers entities, animation, tile maps, collision maps, keyboard and mouse input, sound and music.checked 11 Oct 2026
- Current release listed
- The download page lists Impact Version 1.24 as the current release, dated 2014-07-28.checked 11 Oct 2026
- Debugging
- Impact includes a debug menu for finding performance bottlenecks and inspecting a game while it runs.checked 11 Oct 2026
- Integrations
- The Ejecta page lists Game Center, gamepad, in-app purchases, iAds and image picker integrations or APIs.checked 11 Oct 2026
- Maintenance and release
- The blog says the last Impact update was published in 2014 and that the engine was made free under the MIT License in 2018.checked 11 Oct 2026
- Mobile constraints
- The mobile documentation describes performance, resolution and audio limitations, including that mobile platforms may only play one HTML5 sound at a time on iOS.checked 11 Oct 2026
- Mobile export
- Yeschecked 24 Sep 2026
- Mobile publishing
- The maker says the Ejecta framework can package HTML5 games for the iPhone App Store with multitouch and sound support.checked 11 Oct 2026
- Scripting languages
- JavaScriptchecked 24 Sep 2026
- Security and compliance
- The maker’s opened pages do not state security or compliance certifications.checked 11 Oct 2026
- Source code model
- open_sourcechecked 24 Sep 2026
- Support
- The maker directs programming questions to the forums and IRC channel, and says forum questions are often answered faster than email.checked 11 Oct 2026
- Support forum status
- The Impact forums are read-only and serve as an archive; the page directs questions to GitHub.checked 11 Oct 2026
- What it does
- Impact is a JavaScript game engine for developing HTML5 games for desktop and mobile browsers.checked 11 Oct 2026
Where it runs
- Browser support
- The site says Impact runs in HTML5 capable browsers, including Firefox, Chrome, Safari, Opera and Internet Explorer 9.checked 11 Oct 2026
- Target platforms
- web,iOS,Android,tvOSchecked 24 Sep 2026
Money
- Free plan
- Yeschecked 24 Sep 2026
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