8.1 Manual !link! - Gamemaker
Modern developers using GameMaker Studio 2 often complain about slow texture pages and room sizes. The GM 8.1 manual contains a goldmine of "obsolete" functions that are actually faster for retro games.
Each D&D action block is documented with: gamemaker 8.1 manual
For more complex logic, the manual details the GameMaker Language (GML) , an interpreted scripting language similar to JavaScript or C. Key Features Unique to 8.1 Modern developers using GameMaker Studio 2 often complain