When comparing ImpactJS vs RPGMaker, the Slant community recommends RPGMaker for most people. In the question“What are the best 2D game engines?” RPGMaker is ranked 28th while ImpactJS is ranked 57th. The most important reason people chose RPGMaker is:
It's possible to create a game with absolutely no art or coding skills, so even complete beginners can make something.
Specs
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Pros
Pro Extensive documentation available to support development
ImpactJS has an active user community that busily produces tremendous resources including videos, books, tutorials, walkthroughs and more. There are also comprehensive class documentation available.
Pro Excellent collision detection system
Impact provides 2 types of collision detection; static and dynamic collisions. Both of which are easily integrated into game development.
Pro Extendable
Many plugins are available, including one called Impact++ which adds features like pathfinding and dynamic lighting.
Pro Level editor
Built-in map editor with support for tiling, collision layers, and actors.
Pro Optimized
Works with Box2d physics library, comes with all worthwhile elements for actors built in.
Pro Truly cross-platform allowing developers to build for anything
Extending the reach of a game developed with ImpactJS is easy due to the cross-platform nature the framework. There are Considerations around performance, resolution and audio, however all can be appropriately addressed when in development. Works in the browser via Canvas, even on mobile. Easily translatable into a packaged app.
Pro Easy to jump into using an intuitive WYSIWYG editor
It's possible to create a game with absolutely no art or coding skills, so even complete beginners can make something.
Pro Large and active community
The engine has seen multiple iterations since 1995, so a large online community exists that is always willing to help each other out.
Pro Ruby / Javascript support provides depth to more experienced developers
With a script editor that uses a modified version of Ruby, it's possible to go well beyond the traditional RPG with this engine. Note: XP and VX use Ruby, the latest version "MV" uses Javascript for scripting.
Pro It's an open engine
It's possible to use custom editors from the community, edit libraries,include libraries,etc (MV Only)
Pro Multi-platform
MV supports HTML5 exports, so it is easier than ever to make your game work on iOS, android, OSX,Linux or Windows.
Pro Inbuilt database and multplayer plugins, providing you the scalfolding to customising your projects with ease
The inbuilt database which binds to game saves or can be made persist allows great power within your logic. Also a plugin called 'Alpha.net' provides multiplayer. This combination can allow great customisation of the engine, allowing a powerful 2D game to be made with little to no coding experience.
Pro Greater Map layers
MV Mapping uses an additional layer to create better depth.
Pro MV has HTML5 export
You can now HTML5 export your projects, so you could theoretically host your game on your webserver, and have your friends play the game without ever having to install a single thing.
Pro A cheap license that allows using the software commercially
There are several versions of RPG maker, with MV being the latest and most fully featured: MV ($79.99), VX Ace ($69.99), VX ($59.99) and XP ($24.99), 2003 ($19.99).
Cons
Con Inactive
The last update was in 2014.
Con Cost of $99
While most HTML5 frameworks are offered as free open source projects, ImpactJS has a one time cost and no free option.
Con You have to code when you want something didn't built in
You know,RM series' default walk animation only has three frames.If you want to enhance,you have to code by yourself——especially majority of it's user are newbies.
Con No Hardware accelerate
You'll get a bad performance when you have big animations,especially in MV,which can easily change into higher resolution.
Con No 3D support
None of them have 3D support, it is possible only with manual scripting which could be difficult for beginners.
Con MV Does not have a "REAL" Android export.
MV has an export to HTML5 - which can run on any browser including android. It is however not a "native" app export.
Con Inconsistent included visual assets
Included visual assets within MV have inconsistent presentation. Though RPMMV does contain enough to make a small basic title, the visual assets don't often look like they should be mixed on-screen.
Con No built-in realtime battle system
RPG Maker series has only turn based battle systems, unless scripts/Plugins made by the community are used.
Con Conversion to MV difficult
Older iterations of RPG Maker use smaller sprite sizes that require manual conversion to use older RTP assets and older assets are more robust.
