Free strategy game software for linux

Really Rather Good Battles In Space is a real time strategy game with fleets of spaceships.
Single player real time strategy game following the fall of the great Argonian empire.
Main features:
- a short but relatively polished single player campaign
- pretty (albeit 2d) graphics
- spaceships
- explosions

Gridlock is a collection of 30 grid-based strategy board games for Linux, including Ataxx, Reversi, Checkers, Gomoku, Connect Four, and more. They are individually described in the "Games" section.

After launching the application, the game window will appear. Select the game you want to play from the "Game" popup menu in the upper right. Some games have different variations (board size, layout, etc); when one of those games are selected a "Variations" popup menu will appear from which you can select a variation.

The bottom right displays the color and status of the two players. Each players color is shown by a circle; the player whose turn it is has a filled circle. For games in which players have a score, the scores are shown next to the player labels. Popup windows underneath each players label allow you to specify whether each player is human or computer-controlled, and the difficulty of computer players. (Note that "Hard" and "Very Hard" computer opponents may take several seconds to make each move).

The rest of the window contains the game board. To make a move, click on the cell where you wish to place a piece. Some games require that you move from one cell to another; to do this first click on the cell you wish to move from, then click on the cell you wish to move to. (In some games such as Checkers you may be able to make a move containing several jumps; to do this click on each cell you wish to jump to in sequence).

For all games, cells that are legal moves will become highlighted when you move the mouse over them. A black dot indicates the position of the last move. If you are unable to make a move, you can pass by clicking the "Pass" button on the right. The "Restart" button will restart the game, requiring confirmation if a game is in progress.

The "Preferences..." menu item in the main Gridlock menu opens the Preferences window, which allows you to change the appearance of the game pieces, and to enable or disable the animation when they are captured. Game pieces can either be bitmap images chosen from the popup menus, or solid colors chosen from the color wells.

Games can be saved and restored using the "Save" and "Open" commands in the Game menu. Games are saved with their full move history, so you can save a game after it is finished, open it later, and undo moves back to the beginning.

The Edit menu contains Undo and Redo commands. Selecting Undo will back the game up to the last time it was a human players turn. There is no limit to how many moves can be undone. Selecting Redo will redo a move that was previously undone, but only if no new moves were made after the undo.

The Window menu contains commands to toggle the display of network and statistics drawers. The network drawer is described below and is primarily used to chat with your opponent during a network game. The statistics drawer shows a table listing all the moves that have been made in the current game, and information on the analysis performed during the last move made by a computer player.

Glest is a project for making a free 3D real-time customizable strategy game.
Current version is fully playable, includes single player game against CPU controlled players, two factions with their corresponding tech trees, units, buildings and some maps.
Main features:
Customize every aspect of the game
- Custom units can be defined using XML files. Its posible to define its basic parameters (hp, mp, armor, sight, requirements and much more), its skills and commands and the 3d models associated with them.
- Custom upgrades can be defined. Its posibble to define how and what units they affect, its requirements and more.
- Custom factions can be defined by grouping a set of units and upgrades.
- Custom resources can be defined.
- Custom tech-trees can be defined by grouping a set of factions and resources.
- Custom tilesets can be defined. Its posible to define the surface textures, object 3d models (such as trees os rocks), ambient sounds and more.
- Maps can be edited with the glest map editor.
Graphics: OpenGL 1.3 graphics
- Heightmap terrain.
- Free camera movement (translation, rotation and zoom).
- Own 3d format that can be exported from 3dsmax using the g3d export plugin.
- Real-time shadows, projected or shadow mapped.
- Keyframe animated 3d models.
- Particle systems for rain, snow, fire and spells.
- Classical 3d effects: transparency, lighting, fog etc...
A.I.: ARTIFICIAL INTELIGENCY
- A* based pathfinding algorithm.
- Basic AI for computer controlled players.
Enhancements:
- New Magic units:Tower of Souls, Golem, Daemon giant, Drake rider
- New Tech units:Aerodrome, Air ballista, Rider, Ornithopter, Airship
- New Magic upgrades
- New Tech upgrades
- New animations for existing units
- Shared vision between allies
- New particle blending
- Players now start on the location indicated in the game settings menu
- Score system
- HTML documentation
- Increased projectile accuracy
- Optimized particle rendering
- Loads of balance changes

Attal: Lords of Doom is a strategy game still in development.

Its a turn-based strategy game, that can be played alone (against AI) or against other through a network (local or internet). Attal is available under Linux and Windows.

Transit Executive project is a real-time strategy simulation game of building transit systems, make profits, and attempt to take over your competition.

Othello Game is a classic strategy game, also known as Reversi. Its objective is to finish the game with the greater amount of pieces (circles) of the same color.
This version of the Othello game supports the writing of AI plugins in C++ or Python, network games, and interface themes.
Enhancements:
- pkgconfig support was added.
- It is now easier to write AI plugins.
- An installation guide, and a tutorial for writing plugins were incuded.
- It is now possible to disable Python support from the configuration.
- New icons were provided.

GEMpire project is a turn based multiplayer strategy game in Java.

GEMpire is a simple turn based multiplayer strategy game, written in java, designed to be played over the internet in client-server fashion.

It is a generalization of the commercial game Empire Deluxe for the PC.

It consists mainly of a server, a client, a map editor, and a random map generator.

Quarters Board Game project is a strategy game for two players.

Although its rules are relatively simple, it still offers some of the same opportunities for skill as in chess.

This program was originally conceived in the summer of 1986 during a study of the mini-max algorithm for chess playing computers, and was thus designed to offer some of the same type of strategies.

The game was originally written in BASIC, then ported to Turbo Pascal, then to C, and finally to Java.

The Java version is not necessarily object oriented, since it is a crude port from the C version.