Probably the best tile (road\water\grass\etc) merging technology ever made in gm. Unlike anything made before, provides best control over graphics and perfomance.

A script that allows drawing text with code formatting (all what you see on picture is drawn by one function call). Extremely usefull for rpg's and other games where you would want to highlight some words in block of text without having to calculate coordinates.

The relatively fastest method of creating destructable terrain in large rooms.

A modification of the engine, posted before, combined with hspeed simulation.

A well-commented example of heightmap terrain and things related to it.

A example of physics in vacuum. A bunch of circles that are interacting with each other and so moving around infinitely. Can be a good starter for some atomic simulation or w\e.

A sample engine for action shooter game. Includes perfected collision system, shooting, and a nice ai system (thing to highlight).
You may download this for use in your games or just to test your skills and beat all other dudes in level.
Oh yea, and it's lite compatible.

A simple example that shows, how to create alternative to hspeed movement (with improved collisions, friction, and jumping (vspeed)).

Fresh rpg stat example! includes: health,mana,armor,damage,strength,agility,intellect
+ rpg_update() function, that should be called after changing one of stat\base values - it recalculates all character props.
+ rpg_level() function, created to allow simple level-up'ing, while improving stats
+ example of nice ui text drawing.

A simple and commented example that shows, how to add multi-jumping into platformer games.