2D Shooter Game Creator
The 2D shooter game creator will let YOU create your own games~ in the style of classic lightgun games~ e.g. Time Crisis
http://redsparkstudios.co.uk/2dsgc.htm

3D Adventure Studio
an editor for creating adventure games in style of Gabriel Knight 3 (WIN)
http://3das.noeska.com

3D Game Engine
alpha release of an unfinished 3D game engine (DOS/GNU/Linux)
http://www.dotsphinx.com/software/demo3d/

3D Game Studio
produce 3D realtime applications - demos~ adventures~ role playing~ action~ advertising~ or racing games - without programming skills (WIN)
http://www.conitec.net/english/gstudio/

3D Rad
a programmable~ user-friendly~ 3D real-time engine (WIN)
http://www.3drad.com/

3DCakeWalk
allows the development of commercial quality games with all the "state of art" features you will find in today's leading games
http://www.3dcakewalk.com/

Abstract RTS Engine
An RTS engine under development intended for user-produced rules~ AI~ and media modules (mods)
http://sourceforge.net/projects/abscnc/

ADePT
adventure developing and playing toolkit
http://www.sesseler.de/Adept/adept_en.html

ADRIFT
a simple~ yet powerful IF game designer (WIN)
http://www.adrift.org.uk/

Adventure Book
CYOA creator
http://www.ingold.fsnet.co.uk/software.htm

Adventure Builder
text adventure authoring system (DOS/WIN)
http://www.conroyhome.net/alan/ab/index.htm

Adventure Game Engine
engine for creating graphical first-person adventure games with full support for inventory~ save/load games~ inventory~ puzzles~ conversations~ full motion video~ cutscenes (WIN)
http://www.twilightsoftware.com/age/

Adventure Game Studio
make your own point and click adventure games without programming; recently rewritten~ now supports the standard Sierra interface as well as the LucasArts interface. Very nice. (WIN)
http://www.adventuregamestudio.co.uk/

Adventure Maker
free toolkit to creat point-and-click software for Windows and PSP without programming(Win/PSP)
http://www.adventuremaker.com/

AdventurEd
system in development for creating graphical adventure games (Amiga)
http://hem.passagen.se/drost/amiga/AdventurEd.html

AGAST
Adventure Game Authoring System to create and play your own graphic adventure games like those from LucasArts and Sierra On-line (WIN)
http://www.allitis.com/agast/home.html

AGT
Adventure Game Toolkit for creating text adventures with graphics and sound (DOS)
http://www.markwelch.com/agt.htm

Aiee!
design text adventures without programming experience
http://markdamonhughes.com/Aiee/

ALAN
for creating interactive fiction (Amiga/Unix/DOS)
http://welcome.to/alan-if

Alice
create your own scripts that control the motion of 3D objects for games~ training simulations~ etc (WIN95+)
http://www.alice.org/

Antiryad Gx
easy multi platform game creator tool
http://www.arkham-development.com/

AZALTA
system with endless adventures~ an infinite number of large worlds to explore~ hundreds of puzzles to solve~ creatures to meet~ and items to find -- you can even create your own worlds/creatures/items (WIN/Amiga)
http://www.the-underdogs.info/game.php?id=3093

Blades of Exile
a fantasy role-playing system (WIN/MAC)
http://www.spidweb.com/blades/BOEpress_rel.html

Blender
free and fully functional 3D modeling/rendering/animation package~ including games (Unix/Windows/BeOS)
http://www.blender3d.org/

Blitz Basic
the legendary Amiga Basic compilier for the PC (WIN)
http://www.blitzbasic.com/

Blitz Basic II
basic programming package for creating high-quaility games on the Amiga (Amiga)
http://www.config.freeuk.com/amiga/blitz/

Blox Game Engine
Simple 2D game engine targeted at windows users using visual
http://bge.bloxsoftware.com/

ButtonTalk
easy to use tool for creating interaction fiction (MAC to create~ exports HTML)
http://www.stephen.com/button/button.html

Byond
create online games and applications using a simple programming language
http://www.byond.com/

Ca3D-Engine
create a variety of 3D applications~ including games~ simulations~ and training and architectural software
http://www.ca3d-engine.de/c_About.php

CAECHO
Spanish program for creating interaction fiction (DOS)
http://www.ifarchive.org/indexes/if...ingXcaecho.html

CAT
Creative Adventure Toolkit: adventure authoring utility for writing text adventures on your PC (WIN)
http://www.staining.fslife.co.uk/index.htm

Clean Game Library
complete development system for 2D games (platform games~ side scrollers)~ using the functional language Clean (Win~ MAC~ Linux)
http://www.cs.kun.nl/~clean/platformgameinfo.html

Coconut
2D adventure game development tool (WIN/LINUX)
http://sebastien.josset.free.fr/

Coldstone
the most complete solution for developing games on the Macintosh (MAC)
http://www.beenox.com/

Crystal Space
free (LGPL) and portable 3D engine written in C++ (WIN/MAC/DOS/LINUX)
http://sourceforge.net/projects/crystal/

Cycon Online Gaming -COG- Engine
Open Source project aimed at simplifying the creation of online video games with no programming experience necessary.
http://cogengine.sourceforge.net/introduction.html

Dark Basic
BASIC language that lets you create fast full-screen DirectX and Direct3D games with incredible ease. You can write a 3D game in minutes! (WIN)
http://www.darkbasic.thegamecreators.com/

Delver
shareware single-player overhead-view tile-based computer RPG construction kit written in Java (JAVA)
http://markdamonhughes.com/Delver/

Digital Loca-Lite
3D authoring tool~ especially designed for beginning 3D-Game-makers (Win95+)
http://www.digitalloca.com

Dimension3
3D game creator (MAC)
http://www.klinksoftware.com/

Divinity
RPG maker/editor (MAC)
http://www.fantasoft.com/HTML/Divinity/Divinity_Page.html

DS Game Maker
Using point and click techniques for adding action and interaction, you can make simple games for your beloved console
http://www.dsgamemaker.com/

Engine001
a game creation engine where you can bring your Action RPG and RPG ideas to life
http://www.engine001.com/index.htm

Erasmatazz
Authoring tool used to create interactive storyworlds (WIN/MAC)
http://www.erasmatazz.com/

Explorations RPG System
independent role playing game engine
http://www.explore-rpg.com/

FPS Creator
make your own action packed FPS games without any programming or 3D modelling knowledge
http://www.fpscreator.com/

G-Wiz
Game Wizard will be tool for designing and playing text adventure and role-playing games (WIN)
http://soft-wiz.bizhosting.com/site/g-wiz.htm

Game Book Player
This application allows you to write fighting fantasy like game books and has lots of neat features.
http://www.sandman.connectfree.co.uk/prog/gamebook.htm

Game Builder Lite
for creating animated adventures and educational programs (DOS)
http://www.dosgames.com/g_gcs.php

Game Editor
design 2D games for PCs and mobile devices
http://game-editor.com/

Game Maker
allows you to make exciting computer games~ without the need to write a single line of code(WIN)
http://www.yoyogames.com

Game Music Shop
Offers more than 25 packs of music exclusively designed or games and multimedia applications, with hi-quality previews and an mmediate delivery after purchase
http://www.gamemusicshop.com/

Game Studio
the leading authoring suite for 2D and 3D multimedia projects~ especially computer games
http://www.conitec.net/english/gstudio/

GameBrix
the first product created for Adobe flash designers that enables them to build flash based web games
http://www.gamebrix.net/

GameMaker & GameMaker Lite
simple~ card-based development system that enables you to create simple adventure games with graphics~ buttons~ and text (MAC)
http://members.aol.com/AlStaff/GameMakerHelp.html

Golden Realm
2d Game Maker engine available for only $1.00
http://goldenrealmrpgengine.50webs.com/

Golden T Game Engine
game programming for JAVA programmers
http://goldenstudios.or.id/products/GTGE/

GRAAL
script-based Graphic Adventure Authoring Language (Amiga)
http://de.aminet.net/aminet/dirs/game_role.html

Hephaestus
computer role-playing game system with loadable adventures; with the compiler~ you can write your own adventures in a simple yet powerful scripting language~ and share them with anyone else who has Hephaestus (JAVA)
http://markdamonhughes.com/Hephaestus/

HUGO
a programming language and authoring system for interactive fiction (WIN/DOS/Linux)
http://www.generalcoffee.com/hugo.html

IndianaJava
system to create and run 2D graphic adventure games (JAVA)
http://www.geocities.com/SiliconValley/Foothills/8436/index.html

Inform
a design system for interactive fiction (WIN/MAC/Amiga)
http://www.inform-fiction.org/I7/Welcome.html

InterAx
create games in an easy to use yet powerful visual environment without programming or scripting. (WIN95+)
http://www.cognitial.com/interax/index.htm

JACL Adventure Creation Language
free open-source language for creating interactive fiction and web-based adventure games
http://jacl.sourceforge.net/

KOF91
2D fighting game engine (WIN)
http://koflinux.sourceforge.net/

KPL
Kids Programming Language a freeware educational program
http://www.kidsprogramminglanguage.com/

Lassie Adventure Studio
freeware adventure game creation tool for building classic Lucas Arts-style games with Macromedia (now Adobe) Flash and Shockwave
http://lassie.gmacwill.com/lower.php?section=news&page=index

LawMaker Game Engine
new game engine tailored toward indie game developers
http://www.darkroomstudios.com/

Legendary Tales Editor
text-based gaming environment which allows anyone to create or enjoy independent adventure modules set in any medieval~ swords and sorcery fantasy setting(WIN)
http://www.legendarytales.com/

LucasHacks
the ultimate SCUMM hacking resource including the new SCUMM Revisited (WIN)
http://scumm.mixnmojo.com/

M.u.C.e.S
Multichoice Creation System (MuCeS) allows you to create any type of multiple choice text adventure
http://www.madladdesigns.co.uk/MuCeS/index.htm

MAC Game Creator Toolkit CD ROM
special registered versions of 5 MAC creators~ plus tutorials~ utilities~ and sample games (MAC)
http://members.aol.com/AlStaff/macgamecreator.html

Magx
compiler for creating text adventures which is downward compatible with all of the existing versions of the AGT language(DOS/Linux)
http://www.ifarchive.org/if-archive/programming/agt/magx/

MechaniQue
easy to use programming language for IF (JAVA)
http://www.mechanique.nl/

Megazeux
an object oriented ANSI game maker with many features not found in ZZT (DOS)
http://www.geocities.com/SiliconVal...azeuxWorld.html

MMOWorkshop
Described my submitter as "At this time only free of charge available production proven and professionally supported system to develop mmorpgs"
http://www.mmoworkshop.com/trac/mom/phpbb

MMOWorkshop
The Torque MMO Kit is a complete, production ready, commercially proven MMORPG solution
http://www.mmoworkshop.com/trac/mom/phpbb

Multimedia Fusion
create exciting interactive applications with a mouse-driven interface - this is the one I use (WIN)
http://www.clickteam.com/

My Adventure Game
simple tool for creating graphic adventures
http://www.mrfreefree.com/free_software/my_adventure_game.html

Odyssey-Creators
software to help in game creation and game creation software
http://www.odyssey-creators.com/

Official Hamster Republic RPG Construction Engine
create your own role-playing games with no programming experience (DOS)
http://www.hamsterrepublic.com/

PAWS
IF authoring system (Various)
http://members.nuvox.net/~zt.wolf/PAWS.htm

Pie 3D Game Creation System
make your own 3D action games (DOS/WIN)
http://www.pieskysoft.com/

Platform Studio
free to use software for creating great platform games
http://soft.firstproductions.com/pstudio/index.html

Play Basic
a game programming language designed to take the learning curve out of 2D game making
http://underwaredesign.com/prod_detail.php?id=42

Playcrafter
Create flash games for online game
http://www.playcrafter.com/

PlayerRealms
free online adventure game maker
http://www.chronicalgames.com/pr/

Playground
build computer environments for 4-8 year olds to play~ design~ and create games (WIN)
http://www.ioe.ac.uk/playground/frame_f.htm

Point & Click Developers Kit
2D point and click adventure game developer
http://www.adventure-creator.com/index.php?lg=e

QML Quest Markup Language
free XML-based Choose-Your-Own-Adventure game system
http://questml.com/

Quest
Axe Software's app that allows you to create your own text adventure/RPG games~ quickly and easily. (WIN95+)
http://www.axeuk.com/quest/index.htm

QuestMaker
for making graphical adventure games (DOS)
http://www.ifarchive.org/if-archive/programming/questmaker/

Ray Game Designer
Previously commercial (now freeware) 3D Game building system for Windows 3.x and Windows 95. It allows you to create games based on a RayCaster engine without any knowledge of coding: you only use a point-and-click interface and your favorite drawing tool
http://eicart.free.fr/projects.htm

RayDream Game Studio
program to design computer games for Windows~ Linux and MacOSX
http://www.relamp.tk/rdgs/

Reality Factory
suite of applications that have been created in order to enable people that are NOT programmers to make advanced~ 3d first and third person games for PC's running Windows (WIN)
http://www.realityfactory.info/cms/

Realm Crafter
create your own multiplayer online RPG
http://www.realmcrafter.com/

Ren'Py
a programming language and runtime~ intended to ease the creation of visual-novel type games
http://www.bishoujo.us/renpy/

REXX Adventure
text adventure engine (OS2 Presentation Manager)
http://www.ifarchive.org/if-archive/programming/rexx-adventure/

Royalty Free Music
Royalty free music by category
http://incompetech.com/m/c/royalty-free/

RPG Toolkit Development System
for the Creation and Play of your own RPG Games (WIN)
http://www.toolkitzone.com/toolkit.php

RuneSword
RPG game and construction set (Win95+)
http://www.runesword.com/

SCI Studio
create games for Sierra's SCI engine(WIN)
http://www.bripro.com/scistudio/index.php

Scirra
FREE open-source DirectX game creator. Using a drag-and-drop interface, it makes game creation fast and powerful
http://www.scirra.com/

Scribe
development system for interactive fiction
http://www.4webgames.com/scribe/

Scrolling Game Development Kit
complete game development system whose features can be used by experts and beginners alike
http://gamedev.sourceforge.net/

Sharendipity
designed with non-programmers in mind. Not only does it provide a drag-and-drop programming interface, but it also enables users to re-use game components that have been shared back to the community
http://www.sharendipity.com/

Silent Walk FPS Creator
create FPS style games without any programming knowledge
http://www.silentworks.hu/

SKClone
RPG game maker (WIN)
http://www.geocities.com/bigd99861/SKClone.html

SLUDGE
(Scripting Language for Unhindered Development of a Gaming Environment) is the box of cogs that will be available so that anyone (within reason) can use it to make an adventure game. (WIN)
http://www.hungrysoftware.com/#/tools/sludge/

Sphere
RPG engine specialized for making 2D~ console-style RPGs~ similar to Final Fantasy and Phantasy Star (WIN)
http://aegisknight.org/sphere

Stagecast
create multi-level games~ mazes~ puzzles and simulations for the Web~ using the mouse to demonstrate what you want each character to do(MAC/WIN)
http://www.stagecast.com/

StoryHarp
Audioventure Authoring System adds the dimension of voice to interactive fiction development (WIN95/NT)
http://www.kurtz-fernhout.com/StoryHarp/index.htm

StoryLand
create Cooperative stories~ using only a WEB browser
http://www.terradif.net/online/cyoa...nd/en/index.php

StorySprawl
a site devoted to the creation of hyperfiction
http://www.storysprawl.com/

SUDS
adventure game system which combines the content and feel of a text adventure game with the point-and-click style of Windows (WIN)
http://www.btinternet.com/~sudslore/

TADS
text adventure development system (DOS/WIN/MAC/Amiga/AtariST/OS2/Acorn)
http://www.tela.bc.ca/tads/

The 3D Game Maker
point & click 3D game creator (Win)
http://t3dgm.thegamecreators.com

ThinBASIC Adventure Builder
Interactive Fiction creator
http://tab.thinbasic.com/

ToonTalk - Making Programming Child's Play
build and run all sorts of computer programs (WIN)
http://www.toontalk.com/

VERGE
a role-playing game creation system (DOS)
http://www.verge-rpg.com/

Visionaire2d (English Version)
software that enables you to create your own adventure game without even having experience in a programming language
http://www.visionaire2d.net/index.php?newlang=english

WinPAW
windows version of the Professional Adventure Writer (PAW)(WIN)
http://www.winpaw.com/

Wintermute Engine
a set of tools for creating and running graphical adventure games(WIN)
http://dead-code.org/home/

World Builder
create your own adventure games (MAC)
http://we.got.net/~mapman/wb/

If you know of any other engines PM me and i'll add them.