Game creation tools
Last version of AGS (Adventure Game Studio) that contains DOS editor. AGS is open source development tool that is primarily used to create graphic adventure games.
Cross-platform library mainly aimed at video game and multimedia programming. Last version with DOS support.
Ascii game creation package. It contains everything you need to create and play you very own ascii character rpg / puzzle games.
Graphics Adventure Builder by DC Software.
DIV Games Studio
Complete cross platform games development package, originally for DOS but now available on modern platforms.
A game creation system (GCS) inspired by Tim Sweeney/Epic Megagames’ classic shareware game ZZT.
Official Hamster Republic Role Playing Game Construction Engine. Free, open-source and easy-to-use utility with which you can create your own 2D RPG game in a style similar to the classic Final Fantasy games on the NES. Official website.
Wysiwyg game creation tool with detailed manual. Published by Recreational Software Designs.
DJGPP is a complete 32-bit C/C++ development system for Intel 80386 (and higher) PCs running DOS.
Open source assembly language compiler. DOS version available.
FreeBASIC is a free/open source (GPL), BASIC compiler for Microsoft Windows, DOS and Linux.
Free Pascal is a 32,64 and 16 bit professional Pascal compiler. DOS version available.
A framework for making 2D DOS games in Lua. LoveDOS provides an API based on a subset of the LÖVE API.
IDE and interpreter for a variant of the BASIC programming language by Microsoft.
Turbo C 2.01
Turbo C 2.01 provides everything you needed, all of the tools, included in one environment. Turbo C 2.01 provides tight integration between the editor, compiler, linker, and debugger.
Turbo C++ 1.01
C++ compiler and integrated development environment from Borland, released in 1991.
Turbo Pascal 5.5
Software development system that includes a compiler and an integrated development environment (IDE) for the Pascal programming language. Version 5.5 was released free by Borland in 2002.