FPS Creator (FPSC for short, now called FPS Creator Classic = FPS Creator X9) is a classic and foolproof First Person Shooter game engine bringing stunning visuals. It was developed by The Game Creators in 2008, then it changed its name to FPS Creator Classic in 2016 and was released as a free and fully open-source project with many model packs on GitHub. As a result, FPS Creator X10 became its final version update, which should be the predecessor of GameGuru.

Torque 3D (full name: Torque Game Engine, TGE for short) is free, open-source and cross-platform 3D game engine developed by GarageGames (originally developed by Dynamix for the first-person shooter game Tribes 2 released in 2001) under the MIT license. It features powerful and complex rendering system, high-speed network transmission, authentic real-time editing, script editing system, as well as maximum flexibility and performance across a wide-range of hardware, and a full suite of tools for producing high-quality Windows and browser-based games development.

BuildBox is the world's first real sense of foolproof game making tool (founded by Trey Smith in 2014). Because in BuildBox, the entire game development process can be done simply by dragging and dropping operations, no coding, scripting, programming or software design experience required. It's specially developed for entrepreneurs, designers and other game creation enthusiasts without any program development foundation for game design.

GameMaker Studio (GMS for short, formerly called: Game Maker, Animo) is a very powerful and popular cross-platform, multi-genre game development engine (GDE)/game creation system (GCS) for both entry-level novices/amateurs and seasoned game development professionals. It was written in Delphi by Mark Overmars from Netherlands and first published in 1999.