Intruder Alert version 1.0
(c)2003-2007, doubleDEV
All rights reserved

----- Introduction -----

Intruder Alert is a free top-down 2D arcade maze game written in FreePascal using the SDL library for multimedia output. It's a hobby project and was inspired by 80's classic's like wolfenstein 2d and alien breed. Basically it's several levels of old school, "find the key and the exit", maze madness. :)

If you want to make a trip down memory lane, back to when games didn't need a 1000 page manual to play, this might be your thing. 

Enjoy it.

----- Contact information -----

Please send us feedback on bugs, ideas or what you think of the game. You may also like to visit the forum for information and questions which can be found on the site.

web   : www.doubledev.com
e-mail: game@doubledev.com

----- Requirements -----

Windows 95 or higher.
Linux with XFree86 + libSDL + SDLMixer + libvorbis (+ libsmpeg for framebuffer only version) (tested on Slackware 8.1,11.0 and Mandrake 9)

A videocard and monitor capable of displaying 800x600 pixels using 16-bit (65536) colors. Optionally a 3d accelerated videocard with fully implemented OpenGL drivers. Even though the game was developed on a Pentium 4 and an Athlon XP machine we expect the game to run on any pentium class machine.

----- Starting the game -----

Windows users start intruderalert and check the appropriate boxes for customizing the game.
Linux users will have to do this through the commandline using the following switches:

-opengl   (use OpenGL acceleration instead of the standard framebuffer).
-windowed (run in windowed mode instead of fullscreen).

----- How to play -----

The objective of the game is to complete each stage by collecting the keys and finding the way to the exit. You can move the player by using the cursor keys and shoot by using the space key (if you have ammo). Note that you can pick up ammo boxes and med kits at several places in each level. It's possible to shoot at mines, but the chance of destroying one is related to your skill level. By destroying a mine or opening a door you can increase your skill level.

----- Known issues, win32 -----

In some cases the game may seem slow in full screen mode. If this happens you can try to run it windowed or use opengl. This will solve the problem in most cases.

----- Known issues, linux -----

Linux users need to have a proper accelerated x-windows system and sdl setup for the game to run at a decent speed. Usually the latest linux drivers from your video card vendors web site will do the job. Note that if you use opengl it must have been properly set up, or you may end up with GL related errors.

If for some reason the opengl & frame buffer version of the game (default executable) won't work on your system, and you've tried all available GL and windowed related commandline switches, your last option is the framebuffer only executable which is included in the archive ( intruderalert_SDLframe ).

----- Credits  -----
Game design & code, level design : Scorpion
Sdl wrapper & leveltool code, graphics & sound design : Snipez

----- Links -----

Simple DirectMedia Layer: www.libsdl.org
