When comparing AppGameKit 2.0 vs Clickteam Fusion 2.5, the Slant community recommends AppGameKit 2.0 for most people. In the question“What are the best 2D game engines?” AppGameKit 2.0 is ranked 25th while Clickteam Fusion 2.5 is ranked 31st. The most important reason people chose AppGameKit 2.0 is:
The AppGameKit Basic can now export to HTML5.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro HTML5 support
The AppGameKit Basic can now export to HTML5.
Pro Cross platform
Supports developing games for Android, iOS, PC, Mac, Linux and now HTML5.
Pro You only need to to pay for the license only
There is no charge for upgrades, or for extra platforms (the HTML5 version just appeared in the latest version), there are no subscription fees or other usage charges. If you publish onto either Apple or Google's stores you will have to pay their costs, of course, but the makers of AGK do not take a cut of this themselves.
Pro Plugin support for Windows
Plug-ins can now be added to the Windows platform. Create your own Tier BASIC commands and call them using the AppGameKit Basic script language style.
Pro Instant testing on multiple devices at once
AppGameKit supports instant testing on all connected devices. With the push of a button you can run your game on any device connected to the development machine.
Pro Excellent documentation
Every function is fully documented with examples and exercises. The Tutorial PDF is a full Introduction to 3D game programming with integrated references to every functionality and its most important usecases. The documentation is regulary updated.
Pro Easy basic programming
Program in tier 1 BASIC programming for every 3D game need.
Pro Raspberry Pi free version available
A Raspberry Pi version is available and free. Users just need to register with the developer and then they can download.
Pro Very fast compilation
It is a compilation based language, but the compilation is very fast. A project of about 1800 lines of code, for example, can compile almost instantly. (That's because it does not compile, it's an interpreter)
Pro Support
Informed, timely and intelligent feedback from the AGK forum.
Pro Fast development
There are plenty of functions which facilitate development and deployment. For example, the AGK player immediately plays the updated bytecode on Android devices then the online site helps with building an APK file for Google Play Store in minutes.
Pro Uses a powerful scripting language built for game development
Software produced with the App Game Kit is written in a language called AGK Script. This language has powerful inbuild commands including commands for 2D graphics, physics and networking. The commands make use of the platforms' native functions to improve performance. They are also designed to enhance code readability. The AGK Script commands have extensive online documentation.
Pro C++ and Basic, you have the choice.
It runs fast with BASIC but if you want more you can use C++, it's also easy to use.
Pro Can be used for advanced games programming in C++
Libraries which provide the same functionality are available for the five platforms, so you can code in C++
Pro Comes with an Integrated Development Environment (IDE)
AGK comes with an Integrated Development Environment (IDE) based on the Code::Blocks IDE for writing AGK scripts. A key feature of the IDE is its ability to broadcast compiled programs to other devices for testing.
Pro Performance

Pro Permissive runtime license agreement
With the Developer edition of the product, there are absolutely no limits or requirements when selling your creations. You are free to make as much money as you want (this applies to the Standard edition too), and you don't have to include any logos or credits in your creations.
Pro Upgrade discounts
If you buy Fusion 2.5, and later decide you want to upgrade to the Developer version, or in the case of moving from MMF2 to F2.5, the company offers upgrade discounts.
Pro Export native runtime for all platforms
Be it Windows EXE, Android APK, iOS, HTML5 and Flash SWF, Fusion 2.5 is able to export your game to fast, truly native runtime for specified platform with a click.
Pro Intuitive drag & drop interface & visual event editor
CF2.5 uses a straightforward drag & drop editor that allows for easy level, animation and event creation without having to write a single line of code.
Pro Developers work so closely with the user base
Dedicated Bug tracking system linked to user forum for ease of access.

Pro Free version
A free version is available for download here.
Pro Can also create Windows applications
CF allows creating Windows applications. Additionally, due to hundreds of available extensions, the process is quick.

Pro Box2D physics engine included on all platforms
Clickteam Fusion 2.5 brings to you the box2D physics engine.

Pro Community-driven extensive object repository
Click Fusion has a great selection of extensions submitted by the community.
The extensions cover a variety of game-building tasks including parsing of strings using up to two alternating delimiters using the "Tokenizer Object", generating random numbers without reusing them from multiple lists which can be refilled and distinctively replenished with the "Random Multipool Object" among others.
Pro Not only is it the best, it is the original
This software has been around since 1994 (then called Klik & Play) and is still going very strong. Also, one of the founders of Clickteam was the developer of STOS BASIC and AMOS BASIC for the Atari ST and Amiga computers.
Pro A great unofficial community for Spanish-speaking users
A great community in Spanish where you will receive all the help you need to solve your doubts and problems. You'll also find all kinds of resources and materials in Spanish.
Una gran comunidad en español en donde recibirás toda la ayuda que necesites para solucionar tus dudas y problemas. También encontrarás todo tipo de recursos, tutoriales y ejemplos en español.
Pro Balanced feature set
An excellent compromise between ease of use, power, flexibility and ability to export to different platforms. Easy to learn for beginners with the ability to make complex things, of course, at the expense of a larger effort. Good rapid application development tool for making 2D games.

Pro Supportive, passionate community
Any time you have a question or a problem, the community and the software developers are there to help you out either on forums or steam. The devs repond quickly to private messages or instantly on ClickConverse (chat). Additionally, many users have support sites with open source examples and tutorials.

Pro Well-optimized
Runs well under high object numbers, particularly on PC and iOS thanks to hardware acceleration.
Pro Great IRL user events
Clickteam holds user conventions for customers to come along, meet the staff and hang out with people who they've met online. This furthers the community spirit which is so prevalent around Clickteam's products and it's a fantastic weekend.
Pro It is very powerful for making 2D games, yet requires no traditional programming experience and very little to no higher math
There is no 'easy button' program that will make a good game for you with no hard work, and this software is no exception to that, but it does make the process easier. With the option of coding in either a spreadsheet style editor or a list style editor, the event based programming language reads more like English than traditional programming languages. This has made it ideal for me as I have a very hard time understanding traditional programming. I would say this is the perfect solution for people that want to make 2D games but who don't have a very mathematically oriented mind, and think more visually. Just like anything it can take some getting used to, but after following some tutorials and tinkering with it, you'll be able to create practically any kind of 2D game with it so long as you have the determination.
Pro Exports native mobile code, making great performance games
Pro Great for non-game apps
Such as tools, utilities, multimedia projects, etc.
Pro Great online store to get free and paid assets
Pro Can create custom extensions
Pro Visual (HLSL) effects
Pro Great formula editor, which allows you to create complex maths and events with ease
Pro Box2D physics engine

Pro Stable
Have used fusion 2.5 through all of its iterations, even when it was owned by imsi as CNC ( click n create ) it has been very stable and projects have been known to run on almost any Windows based computer. The projects you create even run on future versions of Windows with never many issues.
Pro 3D powerful solution
Cons
Con Restrictive virtual buttons
"AppGameKit" does not grant editing the very basic parameters of virtual buttons such as font and text size. The only method some people suggest is to use an image for every single "button".
Con Terrible scripting language
MS Basic from the 70's has more features. Procedural, no OO, inheritance, basic user defined types with overloading. Nothing. It even has GOSUB.
Con BASIC language
Even though it supports C++, it's mostly C++ mapped to BASIC without OOP.
Con Can almost only do trivial games
The editor is rather limited, not fully polished, and 3D is missing some key functionalities (3D is work in progress).
Con No builtin game mechanics, events, inventory.
Con $80 even if your game doesn't fly
Con Editor code completion is pretty bad
Con Pros on Slant are written by AGK marketing guys
Con Some features are really outdated and major updates are few and rare
There are some features that could make the software a lot more powerful but Clickteam does not have the staff resources to handle updating the software to be competitive with similar software.
Con Its Event Editor can be cumbersome if you are working on complex projects
While Fusion's visual programming event system is great to simplify things, it can be much more cumbersome to work with it than reading lines of code when you are working on a complex project. Especially if your events involve many nested conditions and lots of objects on the frame.
You are able to group events and objects, but it doesn't help at all if there's lots of conditions on an event and it becomes pretty hard to read.
Con Many extensions not available on non-Windows platforms
A lot of community-made extensions are only written for Windows, making it hard to port your game to other platforms.
Con It is very expensive
100$ to $400.
Con Many event 'gotchas', especially with object selection
Many events have very unpredictable selection behavior, e.g. the 'Create' action (where the selection depends on whether a selection list already exists).
There is also a lot of subtle selection behavior, e.g. implicit object pairs for actions when an object is used in an expression.
Con No native animator with curves, etc
Con Poor native movements
The native non-physical movements are practically unusable if you don't want to use Box2D physics in your game.
Con Need to write C++ extensions when existing extensions don't cut it
If you need e.g. a Steamworks extension or 3D display extension, you need to move out from the event system and create extensions in C++ with a cumbersome API. Fusion does not have FFI calls like other programming languages.
Con No animation/object hierarchy
You need to position/rotate objects manually.
Con Cannot script editor
You cannot script the IDE or editor with e.g. macros or custom functionality, like you can in other popular game engines.
Con Slow event system
Since the event system is interpreted, complex frames will start to slow down. This is also caused by poor code reuse, as usually, you need to copy+paste events with new conditions, making it impossible to cache intermediate results.
Con Lack of native network multiplayer system, built-in database support, social media support
Con Exporters are separate purchases, and they are not cheap
Con No console/Linux exporters
Up to now, Clickteam has a console convert service.
Con Simpler than Scratch
Fusion 2.5 is more Simpler than MIT'S Scratch!

Con The free edition is severely limited
