Little current popularity, these are not generally popular; they often cater to only a small number of platforms (usually only MS-DOS) and may be less advanced or more specialized (such as handling graphics- or multimedia-based games) than systems in the other tiers; games are rarely produced with these systems.

ADL (Adventure Definition Language)

/if-archive/programming/adl/

Advent

/if-archive/programming/advent/

Adventura

/if-archive/programming/adventura/

Adventure Builder

/if-archive/programming/advbuilder/ MSDOS/Win3.x system. Homepage at <http://www.accessone.com/~conroy/ab.html>

AdvSys (Adventure System)

/if-archive/programming/advsys/

AGIFG

/if-archive/programming/agifg/

Archetype

/if-archive/programming/archetype/ A highly object-oriented, bare-bones system.

Aventuro

/if-archive/programming/aventuro/ A system in Esperanto.

DROOL (Dave's Reworked Object Oriented Language)

/if-archive/programming/drool/

Figment

/if-archive/programming/figment/

GAGS (Generic Adventure Game System)

/if-archive/programming/gags/ The precursor to AGT.

GameScape

/if-archive/programming/gamescape/

GINAS (Generic Interactive Narrative Authoring System)

/if-archive/programming/ginas/ An experimental, lisp-like system.

GTAC (Graphic Text Adventure Creator)

/if-archive/programming/gtac/ Creates a complete playable adventure game without losing the friendliness of the Acorn Desktop.

LADS (Levi's Adventure Development System)

/if-archive/programming/lads/ Produces games with a distinct "Scott Adams" look and feel. The state of the art of IF authoring systems is today well beyond this, yet LADS is still a workable, if primitive, system in its own right.

NMP (NM Parser)

/if-archive/programming/nmp/ A Spanish-language system.

OASYS

/if-archive/programming/oasys/

Questmaker

/if-archive/programming/questmaker/

Rexx-Adventure

/if-archive/programming/rexx-adventure/ For OS/2, a freeware object-based adventure creation with a GUI interface. Webpage at <http://www.io.com/~desantom/rad.html>

SINTAC (Sistema Integrado de Creacion de Aventuras Conversacionales)

/if-archive/programming/sintac/ A Spanish-language system.