Important fixes, additions and changes for each version.

Release Date: 01/09/2006

• Fixed bug where missing map files caused the game to crash when loading a save.
• Fixed bug where some dialog boxes did not suspend fullscreen mode.
• Changed download package to dmg format.

Release Date: 07/22/2005

• Added hi-score button in the Main Menu.
• Added separate Custom Maps folder for custom maps and moved the (standard) Maps folder to the Lib folder.
• Changed so that score is saved when restoring a saved game.
• Changed so that saves and hi-score files are located in the Settings folder.
• Changed so that map terminals are entered by pressing the fire button and added hint message about this.
• Fixed bug where save files did not have a MacOS X icon.
• Fixed bug where gamma fades did not work properly under MacOS X 10.4 (Tiger).
• Fixed bug where ion stones and seraphims did not appear when switching to a new character from within a level.
• Fixed bug where application window was sometimes not hidden when switching out of full screen mode.
• Compiled with and included SDL lib version 1.2.8 to bring Hollow Ground up-to-date with the latest bug fixes for MacOS X.

Release Date: 05/23/2005

• Fixed incompatibility with monitor gamma fades under MacOS X 10.4 (Tiger).

Release Date: 12/24/2004

• Fixed bug where screen flipping did not work in all screens causing e.g. the gamepad configuration screen to freeze.

Release Date: 12/23/2004

• Added hardware blitting to improve animation smoothness on machines with graphics cards, which is most modern computers.
• Added graphics hardware compatibility checking to detect and report any potential problems.
• Changed and improved the main menu and intro screen graphics.

Release Date: 09/27/2004

• Fixed bug where having three Seraph Cybernetic Upgrades makes the drones cluster.
• Fixed the playback of musical instruments that sometimes sounded a bit distorted when played with SDL_mixer.
• Fixed out of memory blocks error that affected some custom maps, especially maps with very many objects.
• Fixed glitch where icons of preferences files did not display correctly in MacOS X.
• Changed the default place bomb key for player one to avoid conflict with num lock function on some portable computers.
• Changed the default psi-focus key for player one to correspond new place bomb key placement.
• Changed so that terminals are activated by stepping on them as well as by pressing the fire button.
• Added message when player hits activate psi-foci without having one.
• Added message about bridge blow-up switch on level one as a hint.
• Added message about downloading maps from terminals with the map upgrade.
• Map64 was added to the package some weeks after the initial release of Hollow Ground 1.2, so not everyone got it when they downloaded the previous update. Map64 is the old Ground Floor map in the new indoors shape for those who miss it. The strategy is somewhat different, but most things are unchanged.

Release Date: 07/05/2004

• Changed so that MacOS X versions and MacOS 9 (Classic) versions are separate distributions with separate release schedules.
• Added Mutated Tree as a map feature.
• Added new Ground Floor start map. Modified the old start map and included it as a bonus indoor map at level depth span 1-5.
• More detail and better quality in the algorithm that renders persistent effects on floors and walls.
• Changed to using SDL’s platform independent open source libraries for everything from playing music to timers. Sound and music is converted to new file formats (.XM, .WAV).
• Changed monster generation rate and re-balanced many other game parameters to be more challenging on the higher difficulty levels.
• Changed so that extending bridge feature can be used with any type of tile and not just chasms.
• Fixed bug where tiles in custom maps had the wrong friction (movement slow down) after having been transformed by explosions, extending bridge features, secret doors etc.
• Fixed so that Seraphs no longer intentionally aim and shoot at blow-up switches.
• Fixed so that explosions can not destroy floor switches.
• Fixed bug where teleporting into an area destroyed nearby destructible items. Teleporting can still kill nearby monsters.
• Fixed a minor glitch in save file conversion from some earlier versions of the game.
• Changed maximum number of Seraph Cybernetic Upgrades to three and maximum Ammo Clip Upgrades to one.
• Fixed bug where secret doors could sometimes leave residual wall tiles that prevented movement.
• Fixed so that the game should be able to automatically run in a window when full screen is not supported by the hardware. Notice that the game is still unable to run on some older graphic cards.
• Compiled application as a build with cross-target SDK to be fully compatible with MacOS X version 10.1 and later.

Release Date: 04/22/2004

• Added new monster. Disembodied Minds.
• Added destructible items. Most items can be destroyed just like barrels.
• Changed so that a new character need to enter the level on character death. This prevents the suicide exploit.
• Added two new original songs. Users can also add their own music by placing MADK files in the ‘/lib/music/ingame/’ folder.
• Added three new maps. (Alptraum Ohne Ende, Ex Inferis and Sewer Shrine).
• Fixed some minor issues with the old maps.
• Added two new Psi Foci Cannisters. Adrenaline and Exchange.
• Added Suicide Difficulty Mode. It is unlocked after having completed the game once.
• Changed the number of Cybernetic Upgrade slots to eight.
• Re-balanced player characters and many other things to make the game even more fun.
• Added integration with the level editor.
• Fixed more than one hundred minor things ranging from redrawing tiles and file icons to correcting a few glitches and bugs.
• Removed the Untitled map, replaced and renamed the missing map file Prison Block A (revision 3).

Release Date: 03/10/2004

• Optimized graphical performance significantly under MacOS X.
• Changed ion stone cybernetic upgrades to make them more balanced, preventing the multiple ion stone exploit.
• Fixed bug that sometimes caused ion stones and seraphs to disappear temporarily when the player character teleported a distance of more than two screens.
• Added Command-H keyboard shortcut to hide the application from within any of the game menus.
• Changed sprites so that they glow instead of flash when they are hit and take damage.
• Changed level depth of the bonus map Proving Grounds.
• Fixed minor hardware incompatibility with some machines that sometimes caused the game to crash on certain levels, i.e. Reek of Putrifaction (revison 2).

Release Date: 12/28/2003

• Added check for sprite data integrity and auto-repair of any sprites damaged by the data conversion bug. This bug is also known as the Cortex Utero bug, since it is the only level where the bug manifests itself and causes the game to crash.
• Fixed the bug that sometimes caused ion stones and seraphs to disappear temporarily when the player character teleported on the La Chute level.

Release Date: 12/15/2003

• Maintenance update targeted towards backwards compatibility with earlier versions.
• Added feature to display the amount of money that has been collectedon a level upon completing the level.
• Fixed data conversion bug that caused data corruption of save files and parts of the sprite set when updating from some earlier versions. [Note: the damage done to the sprite set is addressed in version 1.0.4]
• Fixed some minor, but annoying glitches on some configurations.

Release Date: 12/09/2003

• Significant code optimization resulting in much smoother frame rate and over all performance.
• New Cybernetic Upgrade; Seraph - a useful drone companion.
• Improved Map Cybernetic Update; maps can be downloaded and also works like an enemy radar.
• Screen brightness control added in preferences.
• Credit balance displayed in game, current health displayed with five figure accuracy, and some other minor interface improvements.
• Fixed Confusion Psi-Focus Canister bug and the mouse navigation shop item description bug.
• Bonus Map (La Chute), making a total of 65 maps.
• New feature allows you to select a specific map for a test run.

Release Date: 10/24/2003

• Added mouse navigation in all game menus
• Extra bonus level included (64 levels in all)
• Save function interface improved
• Manual enhanced and corrected
• Minor fixes and better future compatibility with graphics hardware and game pads