Free realtime strategy software for linux

Realms of Rivalry is an online tactical rpg. Play short skirmishes in random-generated game worlds.
The game can be summarized as an online graphical turn-based strategy/rpg game where you can play short tactical skirmishes with 2-4 players in small random-generated game worlds. The game is free and can be played either as an applet or downloadable client.
The time-limited turns (30-90 secs) give the game a semi-realtime feel, and the game has sometimes been characterized as "chess on steroids".
Main features:
- Community friendly game lobby where you can chat with others and join realms.
- Up to 4 players simultaneously battling on the same realm.
- Players control teams of 3 characters: Warrior, Archer and Mage.
- Time-limited turn-based gameplay.
- Random-generated game worlds (realms).
- CPU controlled monsters.
- Several weapons, armor, traps and other items.
- Occlusion calculation used in combat situations.
- Interrupts.
- Different types of terrain.
- Buy & sell items at vendors.
- Monster respawning.
- Ingame chat.
- Detailed end-of-game summary panel.
Explore the map and kill creatures to obtain weapons, potions, runes, traps and more to aid you in your quest for domination!
The game development has been very "test-driven" in the sense that the game quickly was made playable and that features and changes were added and removed continuously during development. This hopefully improves gameplay, but of course at the expense of dramatically increased development time.
Realms of rivalry was never intended to "soothe the masses", but were made entirely to match the game that we ourselves would like to play - something we have done for many, many hours :-) But of course, some of you might enjoy this game aswell, and that is why we decided to share it with you!.

Spice Trade project is an RPG/strategy/adventure game.

Spice Trade is an RPG/adventure/strategy game in which the main character is a poor man who has lost his parents, inherited some land and a house.

He becomes a trader of spices and herbs in Baghdad at a time when Europeans are starting their "great voyages of exploration".

The game character has to ensure that the Europeans do not take over his country and his culture, while he has to expand the sphere of influence of his own culture.

Advanced Strategic Command is a free, turn based strategy game. Advanced Strategic Command project is designed in the tradition of the Battle Isle series from Bluebyte and is currently available for Windows and Linux.

Advanced Strategic Command is distributed under the terms of the Gnu General Public License (the license Linux uses too), which basically means the game is free, the complete source code is available and you can do everything with it as long as it remains free.

Blackjack basic strategy calculator project is a Monte Carlo basic strategy calculator.
bsc finds the Blackjack strategy through the Monte Carlo method.
It analyzes each situation with adaptive depth, and is generally optimized for speed.
The rules are hard coded for the authors local casino; adding others or changing them is left for others to do.
It seems to find the correct strategy, but the house edge appears a bit wrong.
Main features:
- no double after split
- double only 9..11
- split as often as you want
- European no hole card
- no surrender
- dealer stands on soft 17
- perfect continous shuffle machine (CSM)
- 6 decks

Relokate is a strategy puzzle game for the K Desktop Environment (KDE). The player must reorder the cards to match the original image or order of numbers.
Relokate has support for adding background images and puzzle themes using the Get Hot New Stuff framework (GHNS).
Enhancements:
- It is a quick bugfix update to 0.4 which didnt install the configuration correctly!

Quantum Star: Generations project is an easy to install and manage space strategy browser-based game.
Quantum Star: Generations is a browser-based space strategy and trading game played across a mapped galaxy against other players. Utilizing mining, trading, research, and production through easy-to-use tools, QS enables both broad micro-management of resources or more "aggregated" methods. Players compete, combat enemy fleets, and manage planets to become the "last man standing". No user downloads are required, and the game is free to host or play.
Quantum Star: Generations Evolved is a browser-based space strategy game. It is playable from any modern browser such as Mozilla Firefox or Internet Explorer. It is written in the PHP programming language and utilises either MySQL or PostgreSQL as a backend database. It is also free for download and may be hosted independently by any user. The game is released under the terms of the Affero General Public License.
Quantum Star: Generations Evolved is a free open source application. Being open source you may modify and redistribute the source code under the terms of the Affero General Public License, or at your option the GNU General Public License version 3 (not version 2).
Main features:
- Free
- Its fun!
- Easy installation
- Support for all versions of MySQL and PostgreSQL
- Support for both PHP4 and PHP5
- Platform independent
- Multiple language support with UTF-8 the standard character encoding
- Focus on security and resource efficiency
- Automated administration tasks
- Did we mention it is fun?

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

Feudalistic Dynasties is a turn-based strategy game placed in the time of feudality in the early middle ages.

As a king of a fictitious European dynasty you have to manage your land setting in vassals, building settlements, recruting combatants...

Please note that feudalistic Dynasties is still in pre-alpha status, so some features may not be implemented. To see which features are yet implemented read the NEWS item of the last release of the game.

Feudalistic Dynasties is published under the GNU General Public License (GPL). You can compile feudalistic Dynasties on various platforms, because paragui uses SDL and SDL supports a large number of plattforms.