1995 video game
Rocks'n'Diamonds is a puzzle video game with elements of "Boulder Dash", "Supaplex", "Emerald Mine", "Solomon's Key", and "Sokoban". It is free software under the GNU GPL-2.0-only license created by Artsoft Entertainment and designed by Holger Schemel.
Gameplay.
"Rocks'n'Diamonds" features gameplay elements from all the games mentioned above, usually in the form of sub-games, although levels can feature combinations of elements from any of the games mentioned above, as well as new ones.
There are currently more than 50,000 levels available on "Rocks'n'Diamonds"-related pages. "Rocks'n'Diamonds" can also read native levels from the games "Emerald Mine", "Supaplex" and "Diamond Caves II".
Boulder Dash.
The "Boulder Dash" game involves collecting a set number of diamonds after which an exit door opens through which the player can enter the next level. The levels are filled with dirt which can be dug simply by moving through it. This creates empty space. Diamonds can be collected by moving into them. Rocks and diamonds can rest on dirt, walls (only indestructible and slippery/magic walls), or other rocks and gems, but once these are removed (or the space next to them), they will fall down. This is sometimes useful, as the player can drop things on top of monsters (butterflies and fireflies) roaming the levels. Some destroyed monsters drop gems necessary to achieve the necessary number to complete the level. Amoeba can be dangerous and unpredictable, but also occasionally useful for several reasons of too few diamonds, or if you need to destroy a monster.
Supaplex and Emerald Mine.
The "Supaplex" and "Emerald Mine" games can be considered clones of "Boulder Dash" themselves, although they have added elements, including explosives, acid, locked doors with matched keys, and more.
Rocks'n'Diamonds provides a download of approximately 50000 Emerald Mine levels, however, it can only play a very limited amount of them under its primary engine; because of this, it utilizes an older version of Emerald Mine for X11 to play those levels.
Sokoban.
The "Sokoban" game is a puzzle, and can be considered to be viewed from above, as its elements are not affected by gravity. This game lets the player push giant light bulbs into sockets in order to finish the level.
Level editor.
The game includes a level editor that lets the player create custom levels. The game also supports custom graphics, as well as whole new level elements which can be created without any programming knowledge.
Development.
With its release in 1995, it is one of the earliest games available for Linux, and it also runs on MS-DOS, Microsoft Windows, Unix, and Mac OS X. The MS-DOS version is based on code by Guido Schulz. The native Emerald Mine game engine is based on an older version of Emerald Mine for X11 by David Tritscher, which is used to read and play all native Emerald Mine levels.
Since 2014 the source code is available via a Git repository.
The game was later ported to various platforms, for instance in 2014 to the OpenPandora handheld.
Reviews.
The game has been praised and noted by "Free Software Magazine" and "Linux Magazine".
References.
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