Free classic software for linux

Java Classic RPG is an RPG framework, engine, and game that uses OpenGL, a challenging AI, huge territories, and classic pen-and-paper turn-based combat. This project is in the tradition of games like Wizardry 7 and EOB, but incorporates innovations made possible by modern computing technology.
The framework and engine feature a self-containing, playable, algorithmically-generated world, and can be the base for new games.
Enhancements:
- The 3D core was refactored, a new jungle design (along with partly billboarded trees and bushes) was added, and several optimizations and bugfixes have been included.

wxSpellcast project is a portable rewrite of the classic X11 multiplayer game.
wxSpellcast is a modern version of Andrew Plotkins classic X11 "spellcast" game. It features client-server networking and a GTK+ GUI on Unix, thanks to the wxWindows cross-platform development library.
Enhancements:
- Fixed a bug that would cause all players to be referred to as "it" instead of the appropriate gender sometimes.
- Fixed the "grey background" cosmetic problem on Windows.
- Updated the Windows binary to use wxWindows 2.4.0.

SDL Sopwith project is a port of the classic flying game Sopwith.
SDL Sopwith is a port of the classic flying game Sopwith to modern operating systems and toolkits.
It was originally a port to the LibSDL toolkit, but there is now a GTK+ version also.
Main features:
- Modern native application - will run under Windows, GNU/Linux, BeOS and probably most modern operating systems supported by LibSDL
- Working sound (emulated PC speaker through the sound card output)
- Working Multiplayer
- More configurable than the original (options from Sopwith 2/ The authors edition can be turned off)
- Vastly cleaned up and portable code
Enhancements:
- Fix some compilation errors due to an error in swinit.c
- Fix networking which got broken somewhere.

Crack Atack! is an OpenGL game based on the Super Nintendo classic Tetris Attack.

You can swap only two bricks. Put at least 3 together to explode them.

Asgard is a project aiming to create a classic video RPG experience complete with:
- random battles
- world maps
- towns
- dungeons
- vibrant graphics
- compelling music
- creative plot

Radzilla is a port of the well known physically based ray tracer Radiance to the C++ programming language, including a GUI based on the QT toolkit from Trolltech.
Radzilla project aims at modifying and optimizing classic Radiance for complex visualization applications in architecture, art or design.
The project started in 2004, 1 1/2 years after Radiance itself became Open Source. In its first stages, it was a means to collect previous Radiance-related work (self-developed, like the direct cache or the color4pict primitive, or externally developed, like Roland Schregles Photon Map) and merge it with the classic core.
Further developments followed soon (like the scene primitive or a new source partitioning scheme). With the recent implementation of a GUI frontend, the focus has temporarily moved more to the periphery.
The overall aim is not to hide the complexity of Radiance, but just to make the use and handling of it easier. Including image processing features based on Radiance classic modules (pfilt, pcond) in the new Version 1.1 now means a next step towards setting up a new environment for working with the plethora of tools offered by the Radiance suite, either in their original version or enhanced with additional features.
Main features:
Code restructuring
- The majority of the Radzilla core consists out of original Radiance code, which is just rearranged, modularized and grouped into C++ classes. The idea was to get aquainted with C++ and object oriented programming, nothing more. Radiance itself is highly optimized, so there is simply no need to rewrite everything.
Increased Flexibility
- Radzilla offers a higher degree of flexibility and modularization, e.g. with the possibility to set individual render parameters for each light source, or with the scene primitive, which lets you insert a full scene including light sources and a different set of render parameters.
New Material and Modifier Primitives
- A handful of new modifiers have been introduced, offering more (or easier) ways to modify surface and medium properties, generate falsecolor output for selected objects, perform semitransparent image mapping etc.
New Modules
- Radzilla currently contains the Photon Map, a forward raytracer routine written by Roland Schregle at Fraunhofer ISE, Freiburg, an optional New Source Partitioning Scheme and the Direct Cache, an optimization strategy for scenes containing many light sources.
Full compatibility with classic Radiance
- Radzilla supports all geometry and material/modifier primitives, all parameters and the octree structure of Radiance classic, i.e. it accepts any valid Radiance input. It also produces the same output format (a Radiance pic).
- The word full has to be taken cum grano salis. In turn of continuing development on both branches, you will unfortunately find the one or the other newly added Radiance classic option which is not supported yet by Radzilla.